AUC: Different Application Strategies When Using Ambar Universal in Class V Cavities

Sponsor
Universidade Federal Fluminense (Other)
Overall Status
Active, not recruiting
CT.gov ID
NCT02948686
Collaborator
(none)
38
1
4
52
0.7

Study Details

Study Description

Brief Summary

Treatment clinical trial, randomized, controled, parallel, double-blinded, with four groups, that aims to evaluate the best application strategy when using a new Universal Adhesive system, Ambar Universal (FGM, Joinville, Brazil). Volunteers will be selected and recruited,following inclusion criteria and pre-established exclusion. All volunteers will be informed and sign a term of clarification and consent. 38 enrolled patients will receive four Class V dental restorations, made in four different ways, one from each experimental group, using the same universal self-etching adhesive system, which is the tested material in this study. Non-carious cervical lesions will receive the applied adhesive system in 4 different protocols separated by groups. Group Self Etching (SET) (control): no conditioning, the adhesive system will be used in 55 teeth, according to the manufacturer's instructions, in the self-etching mode. The adhesive system will be brushed during 10 seconds in the cavity, will be air-dried during 5 seconds, brushed again during 10 seconds, air-dried during 10 seconds and activated during 10 seconds with Light Emission Diode (LED) light; Group SEE (Selective enamel etching): 37% phosphoric acid will be applied during 15 seconds, only in enamel in 55 teeth. This acid will be removed using water, the cavity will be air-dried, and then, the adhesive will be applied according to the manufacturer's instructions, as described in group SET; Group SETT (Self-Etching with extended time): Similar to Group SET, but during the 2 applications, the adhesive systems will be brushed during 20 seconds, and not during 10 seconds as described in Group SET; Group SETL (Self-Etching with extended number of layers): The adhesive system will be applied as describe in Group SET, but the researchers will apply 4 layers, and not 2 layers, as described in Group SET. After applying the adhesive, the restorations will be made with composite resin, and evaluated every 6 months for pain assessment, shape, staining or recurrent caries, using scores. To determine in which group each tooth will be enrolled, the authors will randomize the teeth.

Condition or Disease Intervention/Treatment Phase
  • Other: Self-Etching Application Strategy
  • Other: Enamel Etching Application Strategy
  • Other: Self Etching with Extended time Application Strategy
  • Other: Self Etching with Extended layers number Strategy
N/A

Detailed Description

This is a Treatment clinical trial, randomized, controlled, parallel, double-blinded, with four groups, that aims to evaluate the best application strategy when using a new Universal Adhesive system, Ambar Universal (FGM, Joinville, Brazil). Volunteers will be selected and recruited,following inclusion criteria and pre-established exclusion. All volunteers will be informed and sign a term of clarification and consent. All 38 enrolled patients will receive Class V dental restorations, made in four different ways, one from each experimental group, using the same universal self-etching adhesive system, which is the tested material in this study. All patients must have at only 20 teeth in function, must have at only 4 non carious cervical lesions (NCCL), in different teeth, that need restoration. Those lesions must be non carious, must be more than 1 mm deep, should have exposed dentin, and must have at only 50% of margins in enamel. Teeth should not present periodontal mobility. Firstly, the patient will be anesthetized locally with 3% Mepivacaine solution, followed by prophylaxis with pumice powder and water. All cavities will be washed and dried after these procedures for optimal selection of color, using a color scale. Then, the rubber dam isolation of the teeth to be restored will be held. Non-carious cervical lesions will receive the applied adhesive system in 4 different protocols separated by groups. Group SET (control): no conditioning, the adhesive system will be used in 55 teeth, according to the manufacturer's instructions, in the self-etching mode. The adhesive system will be brushed during 10 seconds in the cavity, will be air-dried during 5 seconds, brushed again during 10 seconds, air-dried during 10 seconds and activated during 10 seconds with LED light; Group SEE (Selective enamel etching): 37% phosphoric acid will be applied during 15 seconds, only in enamel in 55 teeth. This acid will be removed using water, the cavity will be air-dried, and then, the adhesive will be applied according to the manufacturer's instructions, as described in group SET; Group SETT: Similar to Group SET, but during the 2 applications, the adhesive systems will be brushed during 20 seconds, and not during 10 seconds as described in Group SET; Group SETL: The adhesive system will be applied as describe in Group SET, but the researchers will apply 4 layers, and not 2 layers, as described in Group SET. After applying the adhesive, the restorations will be made with composite resin Opallis (FGM, Joinville, Brazil), and evaluated every 6 months for pain assessment, shape, staining or recurrent caries, using scores. To determine in which group each tooth will be enrolled, the authors will randomize the teeth.

Study Design

Study Type:
Interventional
Actual Enrollment :
38 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
Double (Participant, Outcomes Assessor)
Primary Purpose:
Treatment
Official Title:
Clinical Evaluation of Different Application Strategies When Using a Universal Adhesive System in Class V Cavities
Study Start Date :
Aug 1, 2016
Actual Primary Completion Date :
Apr 1, 2017
Anticipated Study Completion Date :
Dec 1, 2020

Arms and Interventions

Arm Intervention/Treatment
Active Comparator: SET (Self-Etching)

55 teeth will receive restorations using Self-Etching Application Strategy

Other: Self-Etching Application Strategy
In Group SET, the adhesive system Ambar Universal will be used in 55 teeth, according to the manufacturer's instructions, in the self-etching mode. The adhesive system will be brushed during 10 seconds in the cavity, will be air-dried during 5 seconds, brushed again during 10 seconds, air-dried during 10 seconds and activated during 10 seconds with LED light; After applying the adhesive, the restorations will be made with composite resin Opallis (FGM, Joinville, Brazil), and evaluated every 6 months for pain assessment, shape, staining or recurrent caries, using scores.

Experimental: SEE (Selective Enamel Etching)

55 teeth will receive restorations using Enamel Etching Application Strategy

Other: Enamel Etching Application Strategy
In Group SEE, 37% phosphoric acid will be applied during 15 seconds, only in enamel in 55 teeth. This acid will be removed using water, the cavity will be air-dried, and then, the adhesive system Ambar Universal will be brushed during 10 seconds in the cavity, will be air-dried during 5 seconds, brushed again during 10 seconds, air-dried during 10 seconds and activated during 10 seconds with LED light; After applying the adhesive, the restorations will be made with composite resin Opallis (FGM, Joinville, Brazil), and evaluated every 6 months for pain assessment, shape, staining or recurrent caries, using scores.

Experimental: SETT (Self-Etching, more time)

55 teeth will receive restorations using Self Etching with Extended time Application Strategy

Other: Self Etching with Extended time Application Strategy
In Group SETT, the adhesive system Ambar Universal will be used in 55 teeth, in the self-etching mode. The adhesive system will be brushed during 20 seconds in the cavity, will be air-dried during 5 seconds, brushed again during 20 seconds, air-dried during 10 seconds and activated during 10 seconds with LED light; After applying the adhesive, the restorations will be made with composite resin Opallis (FGM, Joinville, Brazil), and evaluated every 6 months for pain assessment, shape, staining or recurrent caries, using scores

Experimental: SETL (Self-Etching, more layers)

55 teeth will receive restorations using Self Etching with Extended layers number Strategy

Other: Self Etching with Extended layers number Strategy
In Group SETL, the adhesive system Ambar Universal will be used in 55 teeth, in the self-etching mode. The adhesive system will be brushed during 10 seconds in the cavity, will be air-dried during 5 seconds, brushed again during 10 seconds, air-dried during 5 seconds, brushed again during 10 seconds, air-dried during 5 seconds, brushed again during 10 seconds, air-dried during 5 seconds, and activated during 10 seconds with LED light; After applying the adhesive, the restorations will be made with composite resin Opallis (FGM, Joinville, Brazil), and evaluated every 6 months for pain assessment, shape, staining or recurrent caries, using scores

Outcome Measures

Primary Outcome Measures

  1. Restoration Loss [Four years]

    It will be evaluated the increase in the number of losses of dental restorations in the period of four years, verified by periodic visual clinical examination (6/6 months) based on the statement of difference of at least 25% in the amount of remaining restorations in the different groups.

Secondary Outcome Measures

  1. Marginal Pigmentation [Four years]

    It will be evaluated the increase in the number of dental restorations with marginal pigmentation in the period of four years, verified by periodic clinical visual examination (6/6 months) based on the statement of difference of at least 25% in the amount of stained restorations in the different groups.

  2. Post-Operative Hypersensitivity [Four years]

    It will be evaluated the increase in the number of dental restorations with dentin hypersensitivity in the period of four years, verified by periodic clinical examination (6/6 months) based on the statement of difference of at least 25% in the amount of restorations with dentin hypersensitivity in the different groups.

  3. Secondary Caries [Four years]

    It will be evaluated the increase in the number of dental restorations with secondary caries in the period of four years, verified by periodic radiographic examination (6/6 months) based on the statement of difference of at least 25% in the amount of restorations with secondary caries in the different groups.

Eligibility Criteria

Criteria

Ages Eligible for Study:
18 Years to 70 Years
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
Yes
Inclusion Criteria:
  • All patients must have at only 20 teeth in function, must have at only 4 non carious cervical lesions (NCCL), in different teeth, that need restoration. Those lesions must be non carious, must be more than 1 mm deep, should have exposed dentin, and must have at only 50% of margins in enamel. Teeth should not present periodontal mobility.
Exclusion Criteria:
  • Volunteers with periodontal disease; with gingival bleeding; use of anti-inflammatory drugs in the last 30 days.

Contacts and Locations

Locations

Site City State Country Postal Code
1 Universidade Federal Fluminense - School of Dentistry Nova Friburgo RIO DE Janeiro Brazil 28625-650

Sponsors and Collaborators

  • Universidade Federal Fluminense

Investigators

  • Study Director: MARCOS O BARCELEIRO, DDS, PHD, Universidade Federal Fluminense

Study Documents (Full-Text)

None provided.

More Information

Publications

Responsible Party:
Universidade Federal Fluminense
ClinicalTrials.gov Identifier:
NCT02948686
Other Study ID Numbers:
  • UFFAMBAR2016
First Posted:
Oct 28, 2016
Last Update Posted:
Oct 27, 2020
Last Verified:
Oct 1, 2020
Individual Participant Data (IPD) Sharing Statement:
No
Plan to Share IPD:
No
Keywords provided by Universidade Federal Fluminense

Study Results

No Results Posted as of Oct 27, 2020