Clinical trials: Pinhole
Accommodation
Objective Verification of Physiologic Changes During Accommodation Under Binocular, Monocular, and Pinhole Conditions
The investigators believe that this simple, clear, and objective study may be a great help in understanding the accommodative response during various accommodative stimulation conditions.
- Trial name
- NCT03557346
- Testing
- the WAM-5500 binocular autorefractor/keratometer (Grand Seiko Co. Ltd., Hiroshima, Japan)
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- Chung-Ang University Hospital
Gingival Recession
Pinhole Versus Tunnel for Soft Tissue Recession
This is an assessor-blinded split-mouth randomized clinical study to compare root coverage and gingival tissue thickness following two different surgical procedures for non-autologous grafting: the pinhole surgical technique…
- Trial name
- NCT04513041
- Testing
- Pinhole surgical technique and tunnel technique in a split mouth design
- Where
- United States
- Volunteers
- 21 people, healthy volunteers welcome
- Sponsor
- Mohanad Al-Sabbagh
Gingival Recession
Pinhole Surgical Technique With And Without Use Of Buttons For Treatment Of Multiple Gingival Recessions: RCT
Pinhole surgical technique is a novel minimally invasive, predictable, efficient, time and cost-effective technique for treatment of multiple gingival recession.
- Trial name
- NCT02632968
- Testing
- Pinhole surgery with and without buttons
- Where
- India
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Krishnadevaraya College of Dental Sciences & Hospital
Vision, Ocular
Determine Functions of Pinhole Glasses on the Eyes
Pinhole glasses which is using pinhole effect may induce a functional change on the eyes, including Distance and near visual acuity(DVA, NVA), Pupil size, DOF, Accomodative amplitude, CS, Visual field(VF), Stereopsis.
- Trial name
- PH001 (NCT02111356)
- Testing
- Phinhole glasses
- Where
- South Korea
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Chung-Ang University Hospital
Recession, Gingival
Pinhole Surgical Technique for Root Coverage Using PRF
The current study is a prospective randomised split mouth study to evaluate the effect of Platelet Rich Fibrin as an adjunct to the minimally invasive pinhole surgical technique.
- Trial name
- NCT04202198
- Testing
- A-PRF, pinhole surgical technique only
- Where
- India
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Krishnadevaraya College of Dental Sciences & Hospital
Pinhole
Functional and Physiological Changes Induced by Pinhole Glasses in Presbyopia
This study is aimed at presbyopic patients that do not require magnifying glass at close rage. The purpose of this study is to investigate the functional and physiological changes in eye induced by pinhole glass.
- Trial name
- NCT02722291
- Testing
- Trayner Pinhole Glasses (Trayner Glasses, Ivybridge Devon, U.K.)
- Where
- South Korea
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Chung-Ang University Hospital
Functional Vision Changes
Comparison of Objective and Subjective Changes Induced by Multiple Pinhole Glasses and Single Pinhole Glasses
Purpose of this study is to compare the ocular functional changes including pupil size, visual acuity, depth of focus, accommodative amplitude, visual field, contrast sensitivity, and stereopsis induced by multiple and single…
- Trial name
- NCT02572544
- Testing
- Trayner Pinhole Glasses (Trayner Glasses, Ivybridge Devon, U.K.)
- Where
- South Korea
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Chung-Ang University Hospital
Periodontal Intrabony Defects, Stage III Grade B Periodontitis
Sub-junctional Pinhole Technique
Pinhole Regenerative Therapy (PRT) following minimally invasive non-surgical periodontal therapy (MINST) in the treatment of intrabony defects associated with Stage III Grade B periodontitis.
- Trial name
- PRT (NCT07763223)
- Testing
- Sub-junctional Pinhole Technique (S-PHT)
- Where
- Egypt
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Al-Azhar University
Gingival Recession, Localized
Bi-layer Collagen Membrane Versus Subepithelial Connective Tissue Graft in the Treatment of Localized Gingival Recession
The goal of this clinical trial is evaluation of the change in depth and width of gingival recession in terms of gingival thickness and esthetics, and evaluation of patient satisfaction in terms of postoperative pain and final…
- Trial name
- NCT07162207
- Testing
- Pinhole surgical technique
- Where
- Egypt
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- Ain Shams University