Two-year clinical wear performance of two polyacid-modified resin composites (compomers) in posterior permanent teeth
Braz. j. oral sci
;
7(25): 1539-1542, Apr.-June 2008. tab
Article
in English
| LILACS, BBO
| ID: lil-521311
ABSTRACT
Aim:
The aim was to compare the clinical wear of two compomers (F2000; 3M/ESPE and Dyract AP; Dentsply) placed in occlusal cavities in permanent molars within a two-year follow-up period using an indirect method of evaluation.Methods:
Twenty-one patients, whose treatment plans included Class I restorations, were selected. Each patient received two occlusal Class I restorations in permanent molars. One and 2 years after placement of the restorations, the 21 teeth restored with each material were submitted to wear evaluation. Polyvinylsiloxane impressions were taken and casts were made (baseline, 1 year and 2 years). The casts were classified by comparative evaluation using sets of 18 calibrated standard models (0 to 900 ìm), according to Leinfelders indirect method. Paired and unpaired t-tests were used for comparisons between the evaluations for the same material and between materials for each evaluation period, respectively.Results:
The occlusal wear was higher after 2 years than after 1 year (p<0.001). The t-test demonstrated that the wear values, after 1 year, were similar for both compomers (F2000=17.6 ìm and Dyract AP=12.8 ìm). However, after 2 years, F2000 restorations (40.6 ìm) suffered significantly more wear (p<0.05) than Dyract AP restorations (29.8 ìm). Although compomers performed similarly after 1 year, Dyract showed less occlusal wear after 2 years. All occlusal Class I compomer restorations presented more occlusal wear after 2 years, but were considered as clinically acceptable within the evaluation period.Conclusions:
The mean wear values found for both compomers do not indicate the need for either repair or replacement of the restorations.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Dental Restoration Wear
/
Compomers
/
Dental Restoration, Permanent
Limits:
Adult
/
Humans
/
Male
Language:
English
Journal:
Braz. j. oral sci
Journal subject:
Dentistry
Year:
2008
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Federal University of Pelotas/BR
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