Surgical Procedure, UnspecifiedNCT04286334
Three-dimensional Bone Regeneration Using Custom-made Meshes With and Without Collagen Membrane
A study testing Bone augmentation with cad-cam laser-sintered mesh in people with Surgical Procedure, Unspecified and Soft Tissue Infections, run by GBR Academy at 1 site in Italy.
Trial summary
The presence of alveolar ridge deficiencies is considered major limitation to achieve an implant-prosthetic restoration with high aesthetics and stability over time. Guided Bone Regeneration (GBR) can be considered an effective solution for bone augmentation. Read more about this study
- Who is it for?
- Ages 18 to 80 years
- Conditions the study is for
- Surgical Procedure, Unspecified, Soft Tissue Infections, Surgical Wound Dehiscence
- What is being tested?
- Bone augmentation with cad-cam laser-sintered mesh
- Type of treatment
- Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 30 participants
- Where
- 1 siteItaly
- Study dates
- 1 Dec 2017to 1 Aug 2022
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 80 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
None listed.
Who cannot join
- Poor oral hygiene,
- Untreated periodontal disease
- Smoking habit> 10 cigarettes / day;
- Abuse of alcohol or drugs
- Pregnancy
- Patients with odontostomatological infections and / or systemic infections in progress;
Show all 11Show fewer
- Patient with uncontrolled diabetes mellitus or other metabolic diseases;
- Patients with severe changes in liver and kidney function.
- Patients with confirmed uncontrolled autoimmune disorders.
- Patients subjected radiation therapy in the head or neck region in the last 5 years.
- Patients undergoing immunosuppressive and / or immunocompromised therapy
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Three-dimensional Bone Regeneration Using Custom-made Meshes With and Without Collagen Membrane: Randomized Clinical Trial
The presence of alveolar ridge deficiencies is considered major limitation to achieve an implant-prosthetic restoration with high aesthetics and stability over time. Guided Bone Regeneration (GBR) can be considered an effective solution for bone augmentation. The most advanced technology of GBR is the customized titanium mesh, which is developed with a fully digital work flow system. The aim of this study is to evaluate complications and bone augmentation rates after GBR, based on customized meshes with or without collagen membranes.
After ethical committee approval, 30 patients with horizontal and/or vertical bone defects were enrolled and treated according to the study protocol. During reconstructive surgery (T0), patients were randomly divided into two study groups: 15 patients were treated by means of a custom-made mesh without collagen membrane (Group A - Control Group), while 15 patients were treated by means of a custom-made titanium mesh with a collagen membrane (Group B - Test Group). All sites were grafted with a mixture 50:50 of autogenous bone and xenograft and primary closures of surgical sites were obtained to ensure a submerged healing of the meshes. After 6 months (T1), re-entry surgery was completed to remove the meshes, evaluate the augmented volume and to place implants in the augmented sites. After 3 months (T2), soft tissue management was accomplished with implant exposure and a connective tissue graft, before prosthetic restoration (T3). Data collection included surgical and healing complications, planned bone volume (PBV) and reconstructed bone volume (RBV), pseudo-periosteum type, bone density, implant success, and crestal bone loss. A statistical analysis of recorded data was performed to investigate any statistically significant differences between the study group and statistical significance was set at a=0.05.
Read the detailed description
The rationale of the study is based on the fact that manual and intraoperative modeling of an osteosynthesis mesh is an employee operator and even in the case of very experienced operators it is always difficult, inaccurate and slow. The use of this pre-modeled and pre-fabricated custom-made mesh with bevel margins and three-dimensionally morphology adapted to the bone defect, would allow for a congruous bone regeneration reducing the operating times, the risks linked to the mesh trauma, and the discomfort for the patient. The collagen membrane in association with titanium, based on the principles of guided bone regeneration (GBR), would make it possible to increase bone gain and reduce the percentage of early and late exposure of the mesh.
This study aims to evaluate, in cases of maxillary and mandibular atrophies characterized by a vertical and / or horizontal resorption of the alveolar bone, the percentage of complications (intra- and post-operative) after bone regeneration using custom-made mesh with or without collagen membrane.
The primary objective of this study is to evaluate the non-inferiority of technique B (custom-made mesh - without membrane) compared to technique A (custom-made mesh - with membrane) in the incidence of complications.
Secondary objectives include evaluation of the missing bone volume (lacking bone volume or LBV), reconstructed bone volume (reconstructed bone volume or RBV) with respect to planned bone volume (planned bone volume or PBV), histological and histomorphometric analysis at the time removal of the mesh and peri-implant bone resorption, due to the functional loading of the implants, at 12 months of follow-up.
Other objectives include the qualitative evaluation of bone regeneration by histological and histomorphometric analysis upon removal of the mesh; and the evaluation of peri-implant bone resorption, due to the functional loading of the implants, at 12 months of follow-up.
This is a clinical trial which is promoted by Prof. Claudio Marchetti and the University Hospital of Bologna - Policlinico Sant'Orsola Malpighi. The study is designed as a pilot, randomized, monocentric, independent, parallel-group clinical trial, in which the variables will be analyzed prospectively.
The study will have a selection and enrollment period of approximately 12 months; a treatment period of about 12 months. As a result, the overall duration of the study will be around 24 months.
In the two-year period 2017/2019 the study will include the treatment of 30 patients, in good general health, suffering from partial edentulism of the maxilla and / or jaw with vertical and / or horizontal resorption of the alveolar bone, which require prosthetic rehabilitation supported by implants to improve function and aesthetics of edentulous areas.
Patients will be divided into 2 study groups and assigned to each study group based on the previously computer-generated randomization sequence: 15 patients (group A, control) will be treated by bone regeneration with custom-made mesh without a collagen membrane. 15 patients (group B, test) will be treated by bone regeneration with custom-made mesh with collagen membrane.
In the following table, the 3 treatment phases: The first phase (T0) involved bone regeneration with a custom-made mesh (group A) and with collagen membrane (group B); the second one (T1), subsequently, after 6 months: will forsee the removal of the regeneration device and the insertion of the implants; the thirt (T2), 3 months after the aforementioned, will forsee the final functional loading of the implants, with a consequent follow-up of the regenerated bone.
All the materials and tools that will be used in the study are CE certified (with the exception of the custom-made mesh which, as a custom-made device, does not require CE certification) and have already been used in the normal care path for patients who have undergone bone regeneration. Moreover, the control visits and the radiological investigations of the data foreseen by the aforementioned protocol will be collected; They will be summarized in the case report form (CRF), and are those that characterize the normal care path of patients undergoing necessary bone regeneration for prosthetic implant rehabilitation when the bone quantity is insufficient.
The primary objective of this study is to evaluate the non-inferiority of technique B (digital technique) compared to technique A (traditional technique) in the incidence of complications.
The Secondary objectives include: assessment of patient and operator benefits, reconstructed bone volume (RBV) compared to planned bone volume (PBV), histological and histomorphometric analysis of bone quality obtained and peri-implant bone resorption after 12 months of follow-up.
The sample size necessary to support the null hypothesis is 17 subjects for each group. In order to compensate for any protocol deviations or possible drop-outs, the number of patients was increased to 15 per group.
The results obtained in the two study groups will be subjected to descriptive statistical analysis and the differences between groups will be tested by means of appropriate statistical tests for purely exploratory and non-demonstrative purposes.
The patient will be considered as the statistical unit of the analysis, and the statistical significance will be set at α = 0.05.
The collected data will be grouped and summarized with respect to the demographic, anamnestic, and clinical variables of each patient.
Exploratory analyses will be performed using descriptive statistics. The data will be presented both for the intent-to-treat population and for the per-protocol population.
The sample size necessary to support the null hypothesis is 17 subjects for each group. In order to compensate for any protocol deviations or possible drop-outs, the number of patients was increased to 15 per group. The sample size was calculated using dedicated statistical software (STATA, StataCorp LLC) through Pearson's chi-squared test, guaranteeing a level of significance of 95% and a power of 80%.
- Conditions
- Surgical Procedure, Unspecified, Soft Tissue Infections, Surgical Wound Dehiscence, Bone Density, Bone Loss in Jaw
- Being tested
- Bone augmentation with cad-cam laser-sintered mesh
- Medical subject headings
- Soft Tissue Infections, Surgical Wound Dehiscence
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Bone augmentation with cad-cam laser-sintered meshDevice
Titanium meshes cad cam laser-sintered were applied in sites with alveolar bone deficiency in order to regenerate the bone volume in need of implant-prosthetic restorations.
| Study group | Role | What they receive |
|---|---|---|
| Group A - control Group | Active comparator | Customized titanium mesh without collagen membrane 15 patients will undergo bone regeneration with custom-made mesh without a collagen membrane. (Meshes - 3D-mesh BTK, Biotec, Vicenza, Italy.) Digitally designed by an operator before the surgery (digital technique). Receives: Device: Bone augmentation with cad-cam laser-sintered mesh |
| Group B - Test Group | Experimental | Customized titanium mesh with collagen membrane 15 patients will undergo bone regeneration with a custom-made titanium mesh (BTK, Biotec- Vicenza, Italy). Digitally designed by an operator before the surgery (digital technique), covered by collagen membrane (Cytoplast RTM, Osteogenics, deore materials, Verona, Italy). Receives: Device: Bone augmentation with cad-cam laser-sintered mesh |
What is being measured
The primary outcome is the main question the study is designed to answer.
The rate of healing complications after reconstructive surgery
Healing complications are evaluated based on the chronological order in which they occur:
- immediate exposure occurs within the 1st month
- early exposure occurs between the 1st and the 3rd month
- late exposure occurs after the 3rd month
Evaluation of low-grade and high-grade infection of medical devices used for bone regeneration.
The former complications are classified as:
- Class A, including flap damage (soft tissue perforation or laceration)
- Class B, including neurological damage (paresthesia or disesthesia)
- Class C,including vascular damage (hemorrhage).
The latter complications are divided into four classes, according to the presence and extent of exposure, as well as the presence of a purulent exudate:
- Class I, membrane exposure <3 mm, no purulent exudate
- Class II membrane exposure >=3mm, no purulent exudate
- Class III: membrane exposure, with purulent exudate
Measured: 6 months
Secondary outcomes (16)
Level of anxiety of the patient measured with a Visual Analogue Scale (VAS)
Level of anxiety measured with a Visual Analogue Scale (VAS), where 0 represents the absence of anxiety and 10 represents the maximum level of anxiety.
Measured: Immediately before/after surgery
Pain level of the patient measured on a Visual Analogue Scale (VAS)
Pain level measured on a Visual Analogue Scale (VAS), where 0 represents the absence of pain and 10 represents the maximum level of pain.
Measured: Post operative from immediately after surgery to the 14th day after the surgery
Total Number of painkillers taken post-operative
Total amount of pain killers taken from post operative to the 14th day (a two week period) which will be recorded in the patient's diary.
Measured: Post operative from immediately after surgery to the 14th day after the surgery
Dosage of painkillers
Dosage of painkillers measured as the number of painkillers per day, which will be reported in a diary by the patients.
Measured: Post operative from immediately after surgery to the 14th day after the surgery
Limitation in daily functions measured on a Visual Analogue Scale (VAS)
Limitation in daily functions measured on a Visual Analogue Scale (VAS), where 0 represents the absence of limitations and 10 represents the total limitation.
Measured: Post operative from immediately after surgery to the 14th day after the surgery
Number of patients' post-operative signs and symptoms
Self-assessment of patient's post-operative signs and symptoms (absence or presence swelling, nausea, hematoma, bruising, bleeding), which will be reported in a diary by the patients.
Measured: From the 1st day to the 14th day after the surgery.
Discomfort level of the patient using a Post-operative Symptom Severity (PoSSe)
Discomfort level measured using a Post-operative Symptom Severity (PoSSe) questionnaire.
Questions are a forced choice, requiring the respondent to tick one box.
The questions evaluate the discomfort level in different areas:
- eating: ability to eat, ability to swallow, enjoyment of food, altered taste sensation;
- speech: voice affected, inability to open mouth, speech affected
- sensation: tingling of lips or tongue, numbness of lips or tongue
- appearance: bruising of face and/or neck, swelling of face and/or neck, life affected by appearance
- pain: days of pain, pain controlled by painkillers, life affected by pain
- sickness: days of nausea and vomiting, number of attacks of nausea and vomiting on worst day
- interference with daily activities: interference with work/housework/daily activities, interference with leisure activities
Measured: Post operative, measured on 14th day after the surgery]
Level of satisfaction of the patient using a Health-Related Quality of Life (HrQoL)
Level of satisfaction measured using a Health-Related Quality of Life (HrQoL) questionnaire. Each of the questions are answered with the options of "I am quite satisfied, I'm satisfied, I have no idea, I am dissatisfied, and I am quite dissatisfied".
The questions evaluate:
- satisfaction with the overall treatment chewing ability
- cleaning of the prothesis
- esthetics of the prothesis
- speaking ability
Measured: 6 months and 12 months after the dental prosthesis dental prosthesis has been placed.
Willingness of the patient to undergo the intervention recorded on a Visual Analogue Scale (VAS)
Willingness to undergo the intervention recorded on a Visual Analogue Scale (VAS) where 0 corresponds to "I will never undergo this type of surgery again" and 10 corresponds to "no problem repeating surgery if necessary".
Measured: Post operative measured on the 7th day and on the 14th day
Time required for the CBCT analysis and design of the medical device
Time required for the CBCT analysis and design of the medical device measured in a total number of minutes.
Measured: Pre-operative, 2 weeks before the day of the surgery
Total operative time required for the surgery, measured from immediately before to immediately after the surgery.
Total operative time measured from the time of incision to the end of the suture.
Measured: During procedure
Total chair time measured from immediately before the surgery to immediately after the surgery.
Total chair time measured from the time the patient enters the surgery to the time the patient leaves the room.
Measured: During procedure
Level of operator satisfaction Measured on a 5 point scale
Level of operator satisfaction rated on a 5-point scale, ranging from "absolutely not satisfied" to "absolutely satisfied".
Measured: Immediately after the surgery
Level of operator confidence with the technique
Confidence level with the technique used on a 5-point rating scale, ranging from "absolutely not confident" to " absolutely confident".
Measured: During procedure
Costs related to the technique
Costs related to the GBR technique measured as the total costs of the materials used: number of pins, number of screws, number of membranes, number of biomaterials, number of sutures.
Measured: Immediately after the surgery
Operator anxiety level recorded on a Visual Analogue Scale (VAS)
Operator anxiety level recorded on a Visual Analogue Scale (VAS), where 0 represents the absence of anxiety and 10 represents the maximum level of anxiety.
Measured: From 3 days before the surgery to immediately before the surgery, during the intervention and at the 14th day after the surgery.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted27 Feb 2020
- Study start1 Dec 2017
- Primary completion1 Dec 2019
- Study completion1 Aug 2022
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (1)Papers the sponsor has linked to this study.
- Other trials for Surgical Procedure, UnspecifiedStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 30 participants (actual)
Sponsor and investigators
- Lead sponsor
- GBR Academy
- Sponsor type
- Research network
- Responsible party
- Principal investigator, Alessandro Cucchi, GBR Academy
- Investigators
- Giuseppe Corinaldesi, MD, DDS, MS, Study director, school of dentistry - University of Bologna
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04286334
- Sponsor's protocol ID
- CMF 01/2017
- Status last verified
- Aug 2022
- First submitted
- 12 Feb 2019
- Last updated
- 3 Aug 2022
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: Original articles in international journals
Publications
Cucchi A, Marchiori G, Sartori M, Fini M, Fiorino A, Donati R, Corinaldesi G, Maglio M. A 3D micro-CT assessment of composition and structure of bone tissue after vertical and horizontal alveolar ridge augmentation using CAD/CAM-customized titanium mesh. Clin Oral Implants Res. 2024 Dec;35(12):1546-1559. doi: 10.1111/clr.14342. Epub 2024 Aug 6.
PubMed 39106169
Study at a glance
From the registry record, last updated by the sponsor on 3 Aug 2022. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Three-dimensional Bone Regeneration Using Custom-made Meshes With and Without Collagen Membrane: Randomized Clinical Trial
- ClinicalTrials.gov ID
- NCT04286334
- Acronym / sponsor ID
- CMF 01/2017
- Conditions
- Surgical Procedure, Unspecified, Soft Tissue Infections, Surgical Wound Dehiscence, Bone Density, Bone Loss in Jaw
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 30 participants (actual)
- Lead sponsor
- GBR AcademyResearch network
- Study start
- 1 Dec 2017 (actual)
- Primary completion
- 1 Dec 2019 (actual)
- Study completion
- 1 Aug 2022 (actual)
- First posted
- 27 Feb 2020 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The presence of alveolar ridge deficiencies is considered major limitation to achieve an implant-prosthetic restoration with high aesthetics and stability over time. Guided Bone Regeneration (GBR) can be considered an effective solution for bone augmentation. The most advanced technology of GBR is the customized titanium mesh, which is developed with a fully digital work flow system. The aim of this study is to evaluate complications and bone augmentation rates after GBR, based on customized meshes with or without collagen membranes.
After ethical committee approval, 30 patients with horizontal and/or vertical bone defects were enrolled and treated according to the study protocol. During reconstructive surgery (T0), patients were randomly divided into two study groups: 15 patients were treated by means of a custom-made mesh without collagen membrane (Group A - Control Group), while 15 patients were treated by means of a custom-made titanium mesh with a collagen membrane (Group B - Test Group). All sites were grafted with a mixture 50:50 of autogenous bone and xenograft and primary closures of surgical sites were obtained to ensure a submerged healing of the meshes. After 6 months (T1), re-entry surgery was completed to remove the meshes, evaluate the augmented volume and to place implants in the augmented sites. After 3 months (T2), soft tissue management was accomplished with implant exposure and a connective tissue graft, before prosthetic restoration (T3). Data collection included surgical and healing complications, planned bone volume (PBV) and reconstructed bone volume (RBV), pseudo-periosteum type, bone density, implant success, and crestal bone loss. A statistical analysis of recorded data was performed to investigate any statistically significant differences between the study group and statistical significance was set at a=0.05.
Detailed description
The rationale of the study is based on the fact that manual and intraoperative modeling of an osteosynthesis mesh is an employee operator and even in the case of very experienced operators it is always difficult, inaccurate and slow. The use of this pre-modeled and pre-fabricated custom-made mesh with bevel margins and three-dimensionally morphology adapted to the bone defect, would allow for a congruous bone regeneration reducing the operating times, the risks linked to the mesh trauma, and the discomfort for the patient. The collagen membrane in association with titanium, based on the principles of guided bone regeneration (GBR), would make it possible to increase bone gain and reduce the percentage of early and late exposure of the mesh.
This study aims to evaluate, in cases of maxillary and mandibular atrophies characterized by a vertical and / or horizontal resorption of the alveolar bone, the percentage of complications (intra- and post-operative) after bone regeneration using custom-made mesh with or without collagen membrane.
The primary objective of this study is to evaluate the non-inferiority of technique B (custom-made mesh - without membrane) compared to technique A (custom-made mesh - with membrane) in the incidence of complications.
Secondary objectives include evaluation of the missing bone volume (lacking bone volume or LBV), reconstructed bone volume (reconstructed bone volume or RBV) with respect to planned bone volume (planned bone volume or PBV), histological and histomorphometric analysis at the time removal of the mesh and peri-implant bone resorption, due to the functional loading of the implants, at 12 months of follow-up.
Other objectives include the qualitative evaluation of bone regeneration by histological and histomorphometric analysis upon removal of the mesh; and the evaluation of peri-implant bone resorption, due to the functional loading of the implants, at 12 months of follow-up.
This is a clinical trial which is promoted by Prof. Claudio Marchetti and the University Hospital of Bologna - Policlinico Sant'Orsola Malpighi. The study is designed as a pilot, randomized, monocentric, independent, parallel-group clinical trial, in which the variables will be analyzed prospectively.
The study will have a selection and enrollment period of approximately 12 months; a treatment period of about 12 months. As a result, the overall duration of the study will be around 24 months.
In the two-year period 2017/2019 the study will include the treatment of 30 patients, in good general health, suffering from partial edentulism of the maxilla and / or jaw with vertical and / or horizontal resorption of the alveolar bone, which require prosthetic rehabilitation supported by implants to improve function and aesthetics of edentulous areas.
Patients will be divided into 2 study groups and assigned to each study group based on the previously computer-generated randomization sequence: 15 patients (group A, control) will be treated by bone regeneration with custom-made mesh without a collagen membrane. 15 patients (group B, test) will be treated by bone regeneration with custom-made mesh with collagen membrane.
In the following table, the 3 treatment phases: The first phase (T0) involved bone regeneration with a custom-made mesh (group A) and with collagen membrane (group B); the second one (T1), subsequently, after 6 months: will forsee the removal of the regeneration device and the insertion of the implants; the thirt (T2), 3 months after the aforementioned, will forsee the final functional loading of the implants, with a consequent follow-up of the regenerated bone.
All the materials and tools that will be used in the study are CE certified (with the exception of the custom-made mesh which, as a custom-made device, does not require CE certification) and have already been used in the normal care path for patients who have undergone bone regeneration. Moreover, the control visits and the radiological investigations of the data foreseen by the aforementioned protocol will be collected; They will be summarized in the case report form (CRF), and are those that characterize the normal care path of patients undergoing necessary bone regeneration for prosthetic implant rehabilitation when the bone quantity is insufficient.
The primary objective of this study is to evaluate the non-inferiority of technique B (digital technique) compared to technique A (traditional technique) in the incidence of complications.
The Secondary objectives include: assessment of patient and operator benefits, reconstructed bone volume (RBV) compared to planned bone volume (PBV), histological and histomorphometric analysis of bone quality obtained and peri-implant bone resorption after 12 months of follow-up.
The sample size necessary to support the null hypothesis is 17 subjects for each group. In order to compensate for any protocol deviations or possible drop-outs, the number of patients was increased to 15 per group.
The results obtained in the two study groups will be subjected to descriptive statistical analysis and the differences between groups will be tested by means of appropriate statistical tests for purely exploratory and non-demonstrative purposes.
The patient will be considered as the statistical unit of the analysis, and the statistical significance will be set at α = 0.05.
The collected data will be grouped and summarized with respect to the demographic, anamnestic, and clinical variables of each patient.
Exploratory analyses will be performed using descriptive statistics. The data will be presented both for the intent-to-treat population and for the per-protocol population.
The sample size necessary to support the null hypothesis is 17 subjects for each group. In order to compensate for any protocol deviations or possible drop-outs, the number of patients was increased to 15 per group. The sample size was calculated using dedicated statistical software (STATA, StataCorp LLC) through Pearson's chi-squared test, guaranteeing a level of significance of 95% and a power of 80%.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Group A - control Group | Active comparator | Device: Bone augmentation with cad-cam laser-sintered meshCustomized titanium mesh without collagen membrane 15 patients will undergo bone regeneration with custom-made mesh without a collagen membrane. (Meshes - 3D-mesh BTK, Biotec, Vicenza, Italy.) Digitally designed by an operator before the surgery (digital technique). |
| Group B - Test Group | Experimental | Device: Bone augmentation with cad-cam laser-sintered meshCustomized titanium mesh with collagen membrane 15 patients will undergo bone regeneration with a custom-made titanium mesh (BTK, Biotec- Vicenza, Italy). Digitally designed by an operator before the surgery (digital technique), covered by collagen membrane (Cytoplast RTM, Osteogenics, deore materials, Verona, Italy). |
Who may qualify
- Ages
- 18 to 80 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (0 listed)
Key exclusion criteria (11 listed)
- Poor oral hygiene,
- Untreated periodontal disease
- Smoking habit> 10 cigarettes / day;
- Abuse of alcohol or drugs
- Pregnancy
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Bone augmentation with cad-cam laser-sintered meshTitanium meshes cad cam laser-sintered were applied in sites with alveolar bone deficiency in order to regenerate the bone volume in need of implant-prosthetic restorations. | Device | Group A - control Group, Group B - Test Group |
Primary outcome
The rate of healing complications after reconstructive surgery
Time frame: 6 months
Healing complications are evaluated based on the chronological order in which they occur: * immediate exposure occurs within the 1st month * early exposure occurs between the 1st and the 3rd month * late exposure occurs after the 3rd month Evaluation of low-grade and high-grade infection of medical devices used for bone regeneration. The former complications are classified as: * Class A, including flap damage (soft tissue perforation or laceration) * Class B, including neurological damage (paresthesia or disesthesia) * Class C,including vascular damage (hemorrhage). The latter complications are divided into four classes, according to the presence and extent of exposure, as well as the presence of a purulent exudate: * Class I, membrane exposure <3 mm, no purulent exudate * Class II membrane exposure >=3mm, no purulent exudate * Class III: membrane exposure, with purulent exudate
16 secondary outcomes
Level of anxiety of the patient measured with a Visual Analogue Scale (VAS)
Time frame: Immediately before/after surgery
Pain level of the patient measured on a Visual Analogue Scale (VAS)
Time frame: Post operative from immediately after surgery to the 14th day after the surgery
Total Number of painkillers taken post-operative
Time frame: Post operative from immediately after surgery to the 14th day after the surgery
Dosage of painkillers
Time frame: Post operative from immediately after surgery to the 14th day after the surgery
Limitation in daily functions measured on a Visual Analogue Scale (VAS)
Time frame: Post operative from immediately after surgery to the 14th day after the surgery
Number of patients' post-operative signs and symptoms
Time frame: From the 1st day to the 14th day after the surgery.
Discomfort level of the patient using a Post-operative Symptom Severity (PoSSe)
Time frame: Post operative, measured on 14th day after the surgery]
Level of satisfaction of the patient using a Health-Related Quality of Life (HrQoL)
Time frame: 6 months and 12 months after the dental prosthesis dental prosthesis has been placed.
Willingness of the patient to undergo the intervention recorded on a Visual Analogue Scale (VAS)
Time frame: Post operative measured on the 7th day and on the 14th day
Time required for the CBCT analysis and design of the medical device
Time frame: Pre-operative, 2 weeks before the day of the surgery
Total operative time required for the surgery, measured from immediately before to immediately after the surgery.
Time frame: During procedure
Total chair time measured from immediately before the surgery to immediately after the surgery.
Time frame: During procedure
Level of operator satisfaction Measured on a 5 point scale
Time frame: Immediately after the surgery
Level of operator confidence with the technique
Time frame: During procedure
Costs related to the technique
Time frame: Immediately after the surgery
Operator anxiety level recorded on a Visual Analogue Scale (VAS)
Time frame: From 3 days before the surgery to immediately before the surgery, during the intervention and at the 14th day after the surgery.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 3 Aug 2022.
- Derived from this study: PubMed 39106169Cucchi A, Marchiori G, Sartori M, Fini M, Fiorino A, Donati R, Corinaldesi G, Maglio M. A 3D micro-CT assessment of composition and structure of bone tissue after vertical and horizontal alveolar ridge augmentation using CAD/CAM-customized titanium mesh. Clin Oral Implants Res. 2024 Dec;35(12):1546-1559. doi: 10.1111/clr.14342. Epub 2024 Aug 6.
- Individual participant dataSharing planned: Yes. Original articles in international journals
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Critical Illness, Surgical Procedure, Unspecified
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Giuseppe Corinaldesi, MD, DDS, MS study director
school of dentistry - University of Bologna
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Bone augmentation with cad-cam laser-sintered mesh in people with Surgical Procedure, Unspecified and Soft Tissue Infections, run by GBR Academy at 1 site in Italy.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 0 inclusion and 11 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 3 Aug 2022. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Italy. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
The rate of healing complications after reconstructive surgery (time frame: 6 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT04286334, which also lists 1 linked publication.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Aug 2022.