Clinical Assessment of Two Inlay -Retained Bridge Designs

Clinical Assessment of Two Inlay -Retained Bridge Designs (Proximal Box Shaped and Inlay Shaped) in Missing Posterior Teeth Cases

in the last years, dentistry is going to the concept of conservatism to preserve the most amount of tooth structure, so the evolution of new ceramic materials with invasive designs like (inlay- shaped and proximal box shaped) inlay retained bridge, the investigators can restore single missing posterior teeth with less invasive techniques and less rate of restoration fracture.

Study Overview

• Status: Unknown
• Conditions: Tooth Fractures
• Intervention / Treatment: Other: proximal box inlay retained bridge

Detailed Description

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 postoperative sensitivity. In comparison With the inlay-retained bridge, 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

• Study Type: Interventional
• Enrollment (Anticipated): 70
• Phase: Not Applicable

Contacts and Locations

• Study Contact: Name: Gomaa Abdallah Soliman, MDS; Phone Number: +201145794545; Email: gomaasoliman@dentistry.cu.edu.eg
• Study Contact Backup: Name: Mohamed Mahmoud Abdelgawad, MDS; Phone Number: +201221583708; Email: mohamed.abdelgawad@dentistry.cu.edu.eg

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 51 years (Adult)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Absence of periapical or periodontal or diseases
• sound abutment teeth or with small caries or filling on occlusal or proximal surfaces
• Maintenance of good oral hygiene
• No tooth mobility or grade 1 can be accepted
• Sufficient occluso-gingival tooth height (5mm)
• Good alignment of abutment teeth
• mesiodistal edentulous space preferred not exceed 12mm

Exclusion Criteria:

• Patients under the age of 18 or being incapable of taking out a contract
• Patients with any medical condition that impaired correct oral hygiene
• Endodontic ally treated abutment teeth
• a conspicuous medical or psychological history
• bruxism, or known allergic reaction to the materials used
• limited vertical space for the required connector height of 4mm
• pregnant female patients

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Double

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: ( proximal box design); The proximal box at least ( 1mm wide and has 6◦ divergences, and extend 2 mm apical to the isthmus floor.	Other: proximal box inlay retained bridge; inlay retained bridge is the less invasive type to restore single missing teeth in the posterior area; Other Names: all ceramic inlay retained bridge
Active Comparator: ( inlay shaped design); The occlusal inlay has a preparation depth of 2.0 mm for the ceramic. The occlusal preparation ( 4 mm wide and extend 4mm for premolar and 6 mm for molar mesiodistally	Other: proximal box inlay retained bridge; inlay retained bridge is the less invasive type to restore single missing teeth in the posterior area; Other Names: all ceramic inlay retained bridge

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
fracture	resistance of restoration to disintegrate and the assessment for the outcome will be done by using MUSPHS scale and the measuring unit is score	1 year

Collaborators and Investigators

• Sponsor: Cairo University

Study record dates

Study Major Dates

• Study Start (Anticipated): December 1, 2017
• Primary Completion (Anticipated): December 1, 2018
• Study Completion (Anticipated): February 1, 2019

Study Registration Dates

• First Submitted: July 18, 2017
• First Submitted That Met QC Criteria: July 18, 2017
• First Posted (Actual): July 21, 2017

Study Record Updates

• Last Update Posted (Actual): September 12, 2017
• Last Update Submitted That Met QC Criteria: September 10, 2017
• Last Verified: September 1, 2017

More Information

Terms related to this study

• Keywords: proximal box design preparation
• Additional Relevant MeSH Terms: Wounds and Injuries; Stomatognathic Diseases; Tooth Diseases; Tooth Injuries; Tooth Fractures
• Other Study ID Numbers: CEBD-CU-2017-07-14

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No