Dental Wear, Tooth Wear
Conditions
Brief 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.
Interventions
PROCEDUREGingival displacement
Gingival displacement with a gingival cord (#0, #00 or #000) with specific spatula.
PROCEDUREEnamel and dentin etched
Enamel and dentin etched with 35% phosphoric acid for 30 and 15 seconds, respectively.
PROCEDURESelective enamel etched
Selective enamel etched with 35% phosphoric acid for 15 seconds.
PROCEDUREWash and dry
Wash and dry with absorbent paper.
DEVICETotal-etch adhesive system
Two layers of pirmer/bond on enamel and dentin with a brush.
DEVICEself-conditioning adhesive system
One layer of acid/pirmer on enamel and dentin with a brush following to one layer of bond with a brush.
PROCEDUREPhotoactivated
Photoactivated for 20 seconds
Sponsors
Federal University of Uberlandia
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Healthy volunteers
No
Inclusion criteria
* Healthy volunteers; both genres; presence of at least four non carious cervical lesions of similar dimensions in the same arc and opposite quadrants; good oral hygiene.
Exclusion criteria
* Presence of cavities, cracks or enamel fractures; extensive or unsatisfactory restorations; recent restorations involving the labial surface; dentures or orthodontics; presence of periodontal disease and,or parafunctional habits; systemic disease and, or severe psychological; constant use of analgesic and, or anti-inflammatory or allergic response to dental products.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Success rate of noncarious cervical lesions restorations according to the World Dental Federation criterion | 36 mounths | Evaluate the success rate of NCCL restoration with a 36 mounths follow up |
Countries
Brazil
Contacts
Primary ContactPaulo Vinícius Soares, DDS, MS, PHD
Outcome results
None listed