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Dental ImplantNCT03445039

Clinical Evaluation of Two Types of Transalveolar Sinus Floor Elevation

A study testing traditional TSFE, bone grafting materials and TSFE by DASK drills in people with Dental Implant and Sinus Floor Augmentation, run by Peking University at 1 site in China.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Background: Implant placement in the posterior maxilla is always troubled by the insufficient bone volume. Trans-alveolar sinus floor elevation (TSFE) has been proven a predictable surgical procedure to increase the bone height in the posterior maxilla. Read more about this study

Who is it for?
Ages 18 to 70 yearsHealthy volunteers can take part
Conditions the study is for
Dental Implant, Sinus Floor Augmentation
What is being tested?
traditional TSFE, bone grafting materials and TSFE by DASK drills
Could I receive a placebo?
No, everyone receives an active treatment
How many people
120 participants
Where
1 siteChina
Study dates
2 Dec 2017to 25 Dec 2020
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 70 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • patients who is more than 18 years old;
  • patients have lost a single tooth or several teeth in the posterior area of the maxilla, the tooth has/have been extracted for more than three months;
  • The residual bone height was between 3mm to 6mm;
  • The width of the alveolar ridge could contain the implant with standard diameter;
  • The general and local status of patient are suitable for implant placement and sinus floor elevation;
  • The patient who is willing to sign the informed consent and to follow the experimental follow-up rules.

Who cannot join

  • Uncontrolled systemic diseases as diabetes, hypertension and so on;
  • Uncontrolled local diseases as periodontal disease or muco- cutaneous disease;
  • Heavy smoker (more than 10 cigarettes /day)
  • Patients who is suffering rhinitis, sinusitis; or rather large cyst is found in the maxillary sinus
  • The bone density of the maxillary posterior region is too poor to maintain the initial stability of the implant
  • The target of the implant site once received implant therapy or bone grafting
  • Patient with psychogenia or incapable to understand and obey the doctors' instruction.

Trial locations and contacts

1 site in 1 country.

China1 site, 1 recruiting
  • Peking University, Hospital of stomatology, the first clinical division

    Beijing

    Feng Liu, Dentistliufeng@126.com

    Recruiting

Other trials in China

About this study

Official title: Clinical Evaluation of Modified Transalveolar Sinus Floor Elevation and Osteotome Sinus Floor Elevation in Posterior Maxillae

Background: Implant placement in the posterior maxilla is always troubled by the insufficient bone volume. Trans-alveolar sinus floor elevation (TSFE) has been proven a predictable surgical procedure to increase the bone height in the posterior maxilla. However, questions as the necessity of the bone grafting is necessary during the sinus lift and could the TSFE be performed when the residual bone height is below 5mm are still being debated. Besides, high-quality evidence on comparing the clinical outcome of transalveolar sinus floor elevation with osteotome and modified sinus floor elevation with crestal non-cutting drills is limited.

Methods/Design: 120 adult patients who fit the inclusion criterions are being recruited from the first clinical division, School and Hospital of Peking University (Beijing, China). All the patients are assigned into four groups according a table of random numbers. Participants receive 1) TSFE using osteotomes with bone grafting; 2) TSFE using osteotomes without bone grafting; 3) modified TSFE with bone grafting; and 4) modified TSFE without bone grafting. The clinical operators will be concealed with the assignment until the beginning of surgical procedures. In a one year follow up period, implant survival rates, complications, implant stability, bone remodeling around the implant and patient-reported outcome (visual analogue scale for intraoperative discomfort and postoperative pain) are observed and documented. The implant stability is gauged by the resonance frequency analysis for 7 times (2, 4,8,12,16,26,52 weeks). And the bone remodeling is observed and compared by CT scan.

Discussion: The result of the trial will support a better decision making in atrophy posterior maxilla when implant placement is needed. If favorable, the use of the modified TSFE would achieve as ideal outcome as the traditional TSFE but with less trauma and postoperative discomforts. Besides, whether the bone graft procedure is necessary for the TSFE will also be discussed.

Being tested
traditional TSFE, bone grafting materials, TSFE by DASK drills, without bone grafting materials
Keywords
Dental implants, Trans-alveolar sinus floor elevation, Bone grafting

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • traditional TSFEDevice

    The TSFE procedure is performed by osteotomes (Straumann AG, Basel, Switzland) and mallet as the traditional ways.

  • bone grafting materialsProcedure or surgery

    The bone substitute is placed into the siuns under the membrane before the implant placement

  • TSFE by DASK drillsDevice

    The TSFE procedure is performed by DASK(Dentium Advanced Surgical Kits) drills (Dentium, Korea), the residual cortical plate of the sinus floor is grinded by the drills.

  • without bone grafting materialsProcedure or surgery

    The bone substitute will not be placed into the sinus before the implant placement.

Study groups in NCT03445039
Study groupRoleWhat they receive
TSFE using osteotomes with bone graftingExperimentalThe patients in this group will receive transalveolar sinus floor elevation with osteotomes and mallet. The bone substitute is placed in this group.The interventions in the arm are bone grafting and the TSFE will be performed by osteotomes.
Receives: Device: traditional TSFE; Procedure: bone grafting materials
TSFE using osteotomes without bone graftingExperimentalThe patients in this group will receive transalveolar sinus floor elevation with osteotomes and mallet. The bone substitute will not be placed in this group.The intervention in the arm is the TSFE will be performed by osteotomes.
Receives: Device: traditional TSFE; Procedure: without bone grafting materials
modified TSFE with bone graftingExperimentalThe patients in this group will receive modified transalveolar sinus floor elevation with the Dask drills. The cortical plate of the sinus floor is grinded or removed by the dome like drills. And the membrane is elevated by the surgical instruments. The bone substitute is placed before the implant placement.Interventions in the arm are bone grafting and the TSFE will be performed by dask drills.
Receives: Procedure: bone grafting materials; Device: TSFE by DASK drills
modified TSFE without bone graftingExperimentalThe patients in this group will receive modified transalveolar sinus floor elevation with the Dask drills. The cortical plate of the sinus floor is grinded or removed by the dome like drills. And the membrane is elevated by the surgical instruments. The bone substitute will not be placed in this group.The intervention in the arm is the TSFE will be performed by dask drills.
Receives: Device: TSFE by DASK drills; Procedure: without bone grafting materials

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. implant survival rate

    whether the implant has osseointegrated and functional

    Measured: the implant status will be inspected and calculated at 1 year revisit

  2. implant stability

    the implant stability is gauged by the RFA( resonance frequency analysis)

    Measured: 2 weeks after implant placement

  3. implant stability

    the implant stability is gauged by the RFA( resonance frequency analysis)

    Measured: 4 weeks after the implant placement

  4. implant stability

    the implant stability is gauged by the RFA( resonance frequency analysis)

    Measured: 8 weeks after the implant placement

  5. implant stability

    the implant stability is gauged by the RFA( resonance frequency analysis)

    Measured: 12 weeks after the implant placement

  6. implant stability

    the implant stability is gauged by the RFA( resonance frequency analysis)

    Measured: 16 weeks after the implant placement

  7. implant stability

    the implant stability is gauged by the RFA( resonance frequency analysis)

    Measured: 26 weeks after the implant placement

  8. implant stability

    the implant stability is gauged by the RFA( resonance frequency analysis)

    Measured: 52 weeks after the implant placement

  9. marginal bone remodeling around the implant

    use CBCT to access the marginal bone changes between the 26 weeks after the implant placement and baseline (the day the implant is placed).

    Measured: 26 weeks after the implant placement

  10. marginal bone remodeling around the implant

    use CBCT to access the marginal bone changes between the 52 weeks after the implant placement and baseline (the day the implant is placed).

    Measured: 52 weeks after the implant placement

  11. post operative pain accessed by the patient

    The post operative pain is access by the patient via visual analog scales. The VAS questionnaire consists a 100mm long and two anchors, one at each end. The anchors are verbal "No pain" and "worst imaginable pain". The patient will mark on the line to represent their pain intensity. Using a ruler, the score is determined by measuring the distance (mm) on the 10-cm line between the "no pain" anchor and the patient's mark, providing a range of scores from 0-100.

    Measured: 1 day after the surgery

  12. post operative pain accessed by the patient

    The post operative pain is access by the patient via visual analog scales. The VAS questionnaire consists a 100mm long and two anchors, one at each end. The anchors are verbal "No pain" and "worst imaginable pain". The patient will mark on the line to represent their pain intensity. Using a ruler, the score is determined by measuring the distance (mm) on the 10-cm line between the "no pain" anchor and the patient's mark, providing a range of scores from 0-100.

    Measured: 2 days after the surgery

  13. post operative pain accessed by the patient

    The post operative pain is access by the patient via visual analog scales. The VAS questionnaire consists a 100mm long and two anchors, one at each end. The anchors are verbal "No pain" and "worst imaginable pain". The patient will mark on the line to represent their pain intensity. Using a ruler, the score is determined by measuring the distance (mm) on the 10-cm line between the "no pain" anchor and the patient's mark, providing a range of scores from 0-100.

    Measured: 3 days after the surgery

  14. post operative pain accessed by the patient

    The post operative pain is access by the patient via visual analog scales. The VAS questionnaire consists a 100mm long and two anchors, one at each end. The anchors are verbal "No pain" and "worst imaginable pain". The patient will mark on the line to represent their pain intensity. Using a ruler, the score is determined by measuring the distance (mm) on the 10-cm line between the "no pain" anchor and the patient's mark, providing a range of scores from 0-100.

    Measured: 4 days after the surgery

  15. post operative pain accessed by the patient

    The post operative pain is access by the patient via visual analog scales. The VAS questionnaire consists a 100mm long and two anchors, one at each end. The anchors are verbal "No pain" and "worst imaginable pain". The patient will mark on the line to represent their pain intensity. Using a ruler, the score is determined by measuring the distance (mm) on the 10-cm line between the "no pain" anchor and the patient's mark, providing a range of scores from 0-100.

    Measured: 5 days after the surgery

  16. post operative pain accessed by the patient

    The post operative pain is access by the patient via visual analog scales. The VAS questionnaire consists a 100mm long and two anchors, one at each end. The anchors are verbal "No pain" and "worst imaginable pain". The patient will mark on the line to represent their pain intensity. Using a ruler, the score is determined by measuring the distance (mm) on the 10-cm line between the "no pain" anchor and the patient's mark, providing a range of scores from 0-100.

    Measured: 6 days after the surgery

  17. post operative pain accessed by the patient

    The post operative pain is access by the patient via visual analog scales. The VAS questionnaire consists a 100mm long and two anchors, one at each end. The anchors are verbal "No pain" and "worst imaginable pain". The patient will mark on the line to represent their pain intensity. Using a ruler, the score is determined by measuring the distance (mm) on the 10-cm line between the "no pain" anchor and the patient's mark, providing a range of scores from 0-100.

    Measured: 7 days after the surgery

  18. post operative pain accessed by the patient

    The post operative pain is access by the patient via visual analog scales. The VAS questionnaire consists a 100mm long and two anchors, one at each end. The anchors are verbal "No pain" and "worst imaginable pain". The patient will mark on the line to represent their pain intensity. Using a ruler, the score is determined by measuring the distance (mm) on the 10-cm line between the "no pain" anchor and the patient's mark, providing a range of scores from 0-100.

    Measured: 14 days after the surgery

  19. post operative swelling accessed by the patient

    The post operative swelling is access by the patient via visual analog scales. The VAS questionnaire consists a 100mm long and two anchors, one at each end. The anchors are verbal "No swelling" and "worst imaginable swelling". The patient will mark on the line to represent their swelling intensity. Using a ruler, the score is determined by measuring the distance (mm) on the 10-cm line between the "no swelling" anchor and the patient's mark, providing a range of scores from 0-100.

    Measured: 1 day after the surgery

  20. post operative swelling accessed by the patient

    The post operative swelling is access by the patient via visual analog scales. The VAS questionnaire consists a 100mm long and two anchors, one at each end. The anchors are verbal "No swelling" and "worst imaginable swelling". The patient will mark on the line to represent their swelling intensity. Using a ruler, the score is determined by measuring the distance (mm) on the 10-cm line between the "no swelling" anchor and the patient's mark, providing a range of scores from 0-100.

    Measured: 2 days after the surgery

  21. post operative swelling accessed by the patient

    The post operative swelling is access by the patient via visual analog scales. The VAS questionnaire consists a 100mm long and two anchors, one at each end. The anchors are verbal "No swelling" and "worst imaginable swelling". The patient will mark on the line to represent their swelling intensity. Using a ruler, the score is determined by measuring the distance (mm) on the 10-cm line between the "no swelling" anchor and the patient's mark, providing a range of scores from 0-100.

    Measured: 3 days after the surgery

  22. post operative swelling accessed by the patient

    The post operative swelling is access by the patient via visual analog scales. The VAS questionnaire consists a 100mm long and two anchors, one at each end. The anchors are verbal "No swelling" and "worst imaginable swelling". The patient will mark on the line to represent their swelling intensity. Using a ruler, the score is determined by measuring the distance (mm) on the 10-cm line between the "no swelling" anchor and the patient's mark, providing a range of scores from 0-100.

    Measured: 4 days after the surgery

  23. post operative swelling accessed by the patient

    The post operative swelling is access by the patient via visual analog scales. The VAS questionnaire consists a 100mm long and two anchors, one at each end. The anchors are verbal "No swelling" and "worst imaginable swelling". The patient will mark on the line to represent their swelling intensity. Using a ruler, the score is determined by measuring the distance (mm) on the 10-cm line between the "no swelling" anchor and the patient's mark, providing a range of scores from 0-100.

    Measured: 5 days after the surgery

  24. post operative swelling accessed by the patient

    The post operative swelling is access by the patient via visual analog scales. The VAS questionnaire consists a 100mm long and two anchors, one at each end. The anchors are verbal "No swelling" and "worst imaginable swelling". The patient will mark on the line to represent their swelling intensity. Using a ruler, the score is determined by measuring the distance (mm) on the 10-cm line between the "no swelling" anchor and the patient's mark, providing a range of scores from 0-100.

    Measured: 6 days after the surgery

  25. post operative swelling accessed by the patient

    The post operative swelling is access by the patient via visual analog scales. The VAS questionnaire consists a 100mm long and two anchors, one at each end. The anchors are verbal "No swelling" and "worst imaginable swelling". The patient will mark on the line to represent their swelling intensity. Using a ruler, the score is determined by measuring the distance (mm) on the 10-cm line between the "no swelling" anchor and the patient's mark, providing a range of scores from 0-100.

    Measured: 7 days after the surgery

  26. post operative swelling accessed by the patient

    The post operative swelling is access by the patient via visual analog scales. The VAS questionnaire consists a 100mm long and two anchors, one at each end. The anchors are verbal "No swelling" and "worst imaginable swelling". The patient will mark on the line to represent their swelling intensity. Using a ruler, the score is determined by measuring the distance (mm) on the 10-cm line between the "no swelling" anchor and the patient's mark, providing a range of scores from 0-100.

    Measured: 14 days after the surgery

Secondary outcomes (5)
  1. sulcus bleeding around the implant

    the sulcus bleeding index is used to measure whether there is bleeding when the dental prob is inserte the sulcus around the implant site

    Measured: 26 weeks after the implant placement

  2. dental plaque around the implant

    measure whether there is dental plaque around the implant

    Measured: 26 weeks after the implant placement

  3. other complications

    including post-operative infection, bleeding in the nostril,hematoma, stuffy nose and benign paroxysmal positional vertigo

    Measured: through study completion, up to 1 year

  4. sulcus bleeding around the implant

    the sulcus bleeding index is used to measure whether there is bleeding when the dental prob is inserte the sulcus around the implant site

    Measured: 52 weeks after the implant placement

  5. dental plaque around the implant

    measure whether there is dental plaque around the implant

    Measured: 52 weeks after the implant placement

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Feb 2018
  2. Study start2 Dec 2017
  3. Primary completion25 Dec 2019 (estimated)
  4. Study completion25 Dec 2020 (estimated)

Resources

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
Double blind
Who is masked
Investigator, Outcomes assessor
Enrolment
120 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03445039
Sponsor's protocol ID
modified maxillary sinus lift
Status last verified
Feb 2018
First submitted
25 Jan 2018
Last updated
26 Feb 2018
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Tatum H Jr. Maxillary and sinus implant reconstructions. Dent Clin North Am. 1986 Apr;30(2):207-29.

    PubMed 3516738
  • Summers RB. The osteotome technique: Part 3--Less invasive methods of elevating the sinus floor. Compendium. 1994 Jun;15(6):698, 700, 702-4 passim; quiz 710.

    PubMed 7994726
  • Lozada JL, Goodacre C, Al-Ardah AJ, Garbacea A. Lateral and crestal bone planing antrostomy: a simplified surgical procedure to reduce the incidence of membrane perforation during maxillary sinus augmentation procedures. J Prosthet Dent. 2011 Mar;105(3):147-53. doi: 10.1016/S0022-3913(11)60020-6.

    PubMed 21356405
  • French D, Nadji N, Shariati B, Hatzimanolakis P, Larjava H. Survival and Success Rates of Dental Implants Placed Using Osteotome Sinus Floor Elevation Without Added Bone Grafting: A Retrospective Study with a Follow-up of up to 10 Years. Int J Periodontics Restorative Dent. 2016;36 Suppl:s89-97. doi: 10.11607/prd.2191.

    PubMed 27031637
  • Tan WC, Lang NP, Zwahlen M, Pjetursson BE. A systematic review of the success of sinus floor elevation and survival of implants inserted in combination with sinus floor elevation. Part II: transalveolar technique. J Clin Periodontol. 2008 Sep;35(8 Suppl):241-54. doi: 10.1111/j.1600-051X.2008.01273.x.

    PubMed 18724853
  • Pjetursson BE, Tan WC, Zwahlen M, Lang NP. A systematic review of the success of sinus floor elevation and survival of implants inserted in combination with sinus floor elevation. J Clin Periodontol. 2008 Sep;35(8 Suppl):216-40. doi: 10.1111/j.1600-051X.2008.01272.x.

    PubMed 18724852
  • Markovic A, Misic T, Calvo-Guirado JL, Delgado-Ruiz RA, Janjic B, Abboud M. Two-Center Prospective, Randomized, Clinical, and Radiographic Study Comparing Osteotome Sinus Floor Elevation with or without Bone Graft and Simultaneous Implant Placement. Clin Implant Dent Relat Res. 2016 Oct;18(5):873-882. doi: 10.1111/cid.12373. Epub 2015 Aug 28.

    PubMed 26315564
  • Caban J, Fermergard R, Abtahi J. Long-term evaluation of osteotome sinus floor elevation and simultaneous placement of implants without bone grafts: 10-Year radiographic and clinical follow-up. Clin Implant Dent Relat Res. 2017 Dec;19(6):1023-1033. doi: 10.1111/cid.12530. Epub 2017 Aug 29.

    PubMed 28853214
  • Zhao X, Gao W, Liu F. Clinical evaluation of modified transalveolar sinus floor elevation and osteotome sinus floor elevation in posterior maxillae: study protocol for a randomized controlled trial. Trials. 2018 Sep 14;19(1):489. doi: 10.1186/s13063-018-2879-x.

    PubMed 30217227

Questions about this trial

What is this clinical trial studying?

A study testing traditional TSFE, bone grafting materials and TSFE by DASK drills in people with Dental Implant and Sinus Floor Augmentation, run by Peking University at 1 site in China.

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 6 inclusion and 7 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: status not confirmed, as of the sponsor's last update on 26 Feb 2018. 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 China. 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?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Contact Xu Zhao, Dr (086 13331169917, zhaoxu_@hotmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

implant survival rate (time frame: the implant status will be inspected and calculated at 1 year revisit). The study lists 26 primary outcomes in all. 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 NCT03445039, which also lists 9 linked publications.

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 26 Feb 2018.

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