Influence of Resin Cement Composition on the Longevity of Intraradicular Post of Endodontically Treated Teeth

Study Overview
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Brief Summary
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The aim of this study is through a randomized clinical trial, double blind, splithmouth, evaluate the success rate (post or dental crown displacement; fracture of the core/post/crown; marginal integrity and absence of endotontic alterations) of definitive indirect crowns un endodontically treated teeth. The composition of the resin cement (with and without mineral trioxide aggregate) will be evaluated. Data will be collected, tabulated and submitted to statistical analysis.

Detailed Description
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Endodontically treated teeth present an increased risk of fracture and are usually related to extensive carious processes or trauma that promote major coronary destruction. In such situations, it may be necessary to indicate intra-radicular retainers, such as fiberglass pins, to retain the restorative material. The aim of this study is through a randomized clinical trial, double blind, splithmouth, evaluate the success rate (post or dental crown displacement; fracture of the core/post/crown; marginal integrity and absence of endotontic alterations) of definitive indirect crowns un endodontically treated teeth. The composition of the resin cement (with and without mineral trioxide aggregate) will be evaluated. Twenty participants with at least two teeth with endodontic treatment with need intraradicular post cementation and confection of indirect dental crown (each participant) will be selected. The teeth will be randomly divided into 2 different groups according to resin cement composition (with and without mineral trioxide aggregate). Data will be collected, tabulated and submitted to statistical analysis.

Official Title
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Influence of Resin Cement Composition on the Longevity of Intraradicular Post in the Rehabilitation of Endodontically Treated Teeth - Randomized Clinical Trials

Conditions
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MTA, Endodontically Treated Teeth, Resin Cement

Intervention / Treatment
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* Procedure: Absolute isolation
* Procedure: Manipulation of the resin cement with MTA
* Procedure: Manipulation of the resin cement without MTA
* Procedure: Fiber Post cimentation
* Procedure: Dental Prepare
* Procedure: Dental impression
* Procedure: Crown cimentation
* Procedure: Occlusal adjustment


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Healthy volunteers; Presence of at least two teeth with endodontc treatment; Presence of at least two teeth with indication of total crowns; Good oral hygiene. Exclusion Criteria: Dentures or orthodontics; Presence of periodontal disease Presence of parafunctional habits Presence of systemic disease Constant use of analgesic and or anti-inflammatory Allergic response to dental products

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Conventional Resin Cement<br>Resin cement without MTA | Procedure: Absolute isolation<br>* Absolute isolation with rubber dam<br>Procedure: Manipulation of the resin cement without MTA<br>* Manipulation of the resin cement without MTA according to the manufacturer's recommendations.<br>Procedure: Fiber Post cimentation<br>* Insertion of the cement on the root canal and on post surface. Light-cured for 40 seconds on each surface.<br>Procedure: Dental Prepare<br>* Confection of a indirect crown prepare with diamand burs.<br>Procedure: Dental impression<br>* Dental impression whith silicone.<br>Procedure: Crown cimentation<br>* Insertion of the cement on the inner surface of the crown. Light-cured for 40 seconds on each surface.<br>Procedure: Occlusal adjustment<br>* Analysis of the occlusion with carbon paper.<br>|
| Active Comparator: MTA Resin Cement<br>Resin cement with MTA | Procedure: Absolute isolation<br>* Absolute isolation with rubber dam<br>Procedure: Manipulation of the resin cement with MTA<br>* Manipulation of the resin cement with MTA according to the manufacturer's recommendations.<br>Procedure: Fiber Post cimentation<br>* Insertion of the cement on the root canal and on post surface. Light-cured for 40 seconds on each surface.<br>Procedure: Dental Prepare<br>* Confection of a indirect crown prepare with diamand burs.<br>Procedure: Dental impression<br>* Dental impression whith silicone.<br>Procedure: Crown cimentation<br>* Insertion of the cement on the inner surface of the crown. Light-cured for 40 seconds on each surface.<br>Procedure: Occlusal adjustment<br>* Analysis of the occlusion with carbon paper.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Success rate (post or dental crown displacement; fracture of the core/post/crown; marginal integrity and absence of endotontic alterations) of definitive indirect crowns with a 1 year follow up. |  | 1 year |