NCT02961049

Influences of Gingival Cord Retractor in Retention Rate of Non-carious Cervical Lesions Restorations.

Influences of Gingival Cord Retractor in Retention Rate of Non-carious Cervical Lesions Restorations With Different Adhesive Systems. Randomized Clinical Trials.

• Status: Unknown
• Phase: N/A
• Study type: Interventional
• Enrollment: 55 (estimated)
• Sponsor: Federal University of Uberlandia · Academic / Other
• Sex: All
• Age: —
• Healthy volunteers: Not accepted

Summary

The aim of this study is through a randomized clinical trial, double blind, splith-mouth, evaluate the retention rate of restorative protocols of Non-carious cervical lesion. The presence of gingival displacement with a retraction cord (yes or no) and the category of adhesive system (etch-and-rise and self-etching) will be evaluated. Data will be collected, tabulated and submitted to statistical analysis.

Detailed description

Cervical wear is classified as a noncarious cervical lesion (NCCL), which is a pathological process characterized by loss of dental hard tissues near the cementoenamel junction (CEJ). The aim of this study is through a randomized clinical trial, double blind, splith-mouth, evaluate the retention rate of restorative protocols of Non-carious cervical lesion. The presence of gingival displacement with a retraction cord and the category of adhesive system will be evaluated. Two hundred and twenty teeth, with NCCL of depth greater than 1.5mm, of 55 healthy patients of both sexes will be select. The teeth will be randomly divided into 4 different groups according to the gingival displacement with retraction cord (yes or no) and adhesive system category (etch-and-rise and self-etching). Data will be collected, tabulated and submitted to statistical analysis.

Conditions

• Dental Wear
• Tooth Wear

Interventions

Type	Name	Description
PROCEDURE	Gingival displacement	Gingival displacement with a gingival cord (#0, #00 or #000) with specific spatula.
PROCEDURE	Enamel and dentin etched	Enamel and dentin etched with 35% phosphoric acid for 30 and 15 seconds, respectively.
PROCEDURE	Selective enamel etched	Selective enamel etched with 35% phosphoric acid for 15 seconds.
PROCEDURE	Wash and dry	Wash and dry with absorbent paper.
DEVICE	Total-etch adhesive system	Two layers of pirmer/bond on enamel and dentin with a brush.
DEVICE	self-conditioning adhesive system	One layer of acid/pirmer on enamel and dentin with a brush following to one layer of bond with a brush.
PROCEDURE	Photoactivated	Photoactivated for 20 seconds

Timeline

• Start date: 2016-11-01
• Primary completion: 2017-12-01
• Completion: 2019-02-01
• First posted: 2016-11-10
• Last updated: 2016-11-11

Locations

1 site across 1 country: Brazil