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Clinical Evaluation of Teeth Prepared With Vertical Preparation Versus Deep Chamfer

NCT05252689 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 40

Last updated 2022-04-26

No results posted yet for this study

Summary

It has been demonstrated that a great amount of tooth structure is lost during the prosthetic preparations of abutments for full-coverage FDPs with tooth substance removal of 63% of 73%, this aggressive loss of tooth structure usually accompanied with pain and post-operative sensitivity. In comparison with the vertical preparation technique, there is less amount of tooth substance loss. this clinical study will provide benefits for practitioners and clinicians by guiding them to choose a more conservative treatment plan with the better marginal fit, clinical performance and satisfaction for the patients on the long term. rather than other benefits like less chair time, less risk for pulp injury, less time and cost

Conditions

  • Single Posterior Crowns
  • Endodontically Treated Teeth
  • Decayed Teeth

Interventions

OTHER

monolithic zirconia single posterior crowns with deep chamfer finish line

deep chamfer of 1 mm average thickness for cervical finish line, a convergence angle of 6-12° on each side and up to 20° total, in some studies, is acceptable and occlusal reduction of 1,5-2 mm

OTHER

monolithic zirconia single posterior crowns with vertical finish line

using special round-ended 2 degrees tapered diamond burs a non-working tip (batt bur). It has coronal diameter of 1.2 mm, apical diameter of 0.7 mm, and non- cutting end of 1 mm, which reduces or avoids damage to the connective attachment and allows a tooth-guided preparation procedure

Sponsors & Collaborators

  • Cairo University

    lead OTHER

Principal Investigators

  • Maha Taymour, PhD · Cairo University

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
20 Years
Max Age
40 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2020-03-01
Primary Completion
2021-03-01
Completion
2021-07-01

Countries

  • Egypt

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05252689 on ClinicalTrials.gov