Clinical Assessement of Glazed Versus Polished Lithium Disilicate Crowns in Surface Roughness and Enamel Antagonists Wear

NCT03696849 | Unknown

• 1 other identifier: CEBD-CU-2018-09-34
• Study Type: interventional
• Target: 28
• Locations: 0 countries
• Sites: N/A

Brief Summary

It is believed that final glazing yields the most acceptable ceramic surfaces in terms of smoothness. However, since reglazing must be performed in a dental laboratory with the use of a thermal furnace, it requires multiple office visits. Repeated firings have a destructive effect on ceramic surfaces and can cause deformation. Conversely, polishing is easy and simple and can be accomplished in a single session.

Conditions

Tooth Decay

Outcome Measures

Primary Outcomes (1)

• Antagonists enamel wear using profilometer

  wear of enamel antagonists opposing to emaxPress crowns that will be measured in um

  1 year

Secondary Outcomes (2)

• Restoration surface Roughness using profilometer

  1 year

• Patient satisfaction

  1 year

Study Arms (2)

glazed emax Press

ACTIVE COMPARATOR

Other: polished emax Press

Polished emax Press

EXPERIMENTAL

Other: polished emax Press

Interventions

polished emax Press OTHER

lithium disilicate glass ceramic crowns subjected to polishing only

Also known as: emaxPressable ceramics

Polished emax Press; glazed emax Press

Eligibility Criteria

• Age: 18 Years - 50 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64)

You may qualify if:

• Patients from 18-50 years old who are able to read and sign the informed consent document.
• Physically and psychologically able to tolerate conventional restorative procedures.
• Have no active periodontal or pulpal diseases, have teeth with good restorations.
• Patients have no temporomandibular disorders.
• Each participant needed a crown on either a first or second premolar or first or second molar in any arch.
• Teeth selected shoud include:
• restorability with a crown:root ratio of at least 1:1. presence of an opposing natural tooth which was non-restored or minimally restored.
• the presence of two non-restored or minimally restored teeth opposing each other on the same quadrants as the crowned tooth and the opposing to serve as enamel controls. Minimally restored was defined as teeth which have no restoration greater than a Class II amalgam restoration.
• \- Willing to return for follow-up examinations and evaluation.

You may not qualify if:

• Patients in the growth stage with partially erupted teeth.
• Patients with poor oral hygiene and motivation.
• Pregnant women.
• Psychiatric problems or unrealistic expectations.
• Lack of opposite occluding dentition in the area intended for restoration.
• Patients with temporomandibular disorders.

Sponsors & Collaborators

• Cairo University: lead

MeSH Terms

Conditions

Dental Caries

Condition Hierarchy (Ancestors)

Tooth Demineralization; Tooth Diseases; Stomatognathic Diseases

Central Study Contacts

Mervat Rouchdy, M.D.s

CONTACT

01272625020; mervatmourad82@gmail.com

Lamia Khair Allah

CONTACT

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: DOUBLE
• Who Masked: PARTICIPANT, OUTCOMES ASSESSOR
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: assisstant lecturer, fixed prosthodontics department, faculty of oral and dental medicine

Study Record Dates

• First Submitted: October 2, 2018
• First Posted: October 5, 2018
• Study Start: November 1, 2018
• Primary Completion: November 1, 2019
• Study Completion: January 1, 2020
• Last Updated: October 5, 2018

Record last verified: 2018-10