[A three-year clinical evaluation of ceramic optimized polymer posterior inlays].
OBJECTIVE
To evaluate the clinical results of ceramic optimized polymer (Targis) posterior inlays.


METHODS
345 type I cavities were divided into two groups: 170 in Targis inlays group (42 premolars and 128 molars) and 175 in control group (composite resin inlays, 45 premolars and 130 molars). The clinical effects of Targis inlays and composite resin inlays in posterior teeth were compared in marginal discoloration, marginal adaption, secondary caries, anatomic shape integrity, fractures of tooth and color match 3 years later. The data were analyzed using Chi-square test.


RESULTS
3 years after treatment, 166 Targis inlays were followed up, 2 had marginal discoloration, 158 had good marginal adaption, 162 had anatomic shape integrity, 1 had secondary caries, 161 had color match, and 5 had fractures of teeth. 169 composite resin inlays were followed up, 27 had marginal discoloration, 134 had good marginal adaption, 150 had anatomic shape integrity, 20 had secondary caries, 164 had color match,5 had fractures of teeth. The marginal discoloration, marginal adaption, secondary caries, anatomic shape integrity of Targis inlays were better than that of composite resin inlays (P < 0.05), but fractures of teeth was not different between inlays in the two group (P > 0.05).


CONCLUSIONS
Targis posterior inlays is a good newly developed prosthesis.
Xu
Quan-Lin
QL
Yangpu Dental Clinic, Shanghai 200082, China.
Ji
Pei-Hong
PH
Ba
Yong
Y
Jiang
Zhong-Ming
ZM
D001641:Bicuspid; D002516:Ceramics / Q000737:chemistry*; D003116:Color; D003188:Composite Resins / Q000737:chemistry*; D003731:Dental Caries / Q000628:therapy*; D018772:Dental Marginal Adaptation; D003776:Dental Porcelain; D005899:Glass Ionomer Cements; D006801:Humans; D007284:Inlays / Q000295:instrumentation*; D008963:Molar; D011108:Polymers; D012823:Silicate Cement; D014082:Tooth Fractures
D003188:Composite Resins; D005899:Glass Ionomer Cements; D011108:Polymers; C111282:dental polyglass; D003776:Dental Porcelain; D012823:Silicate Cement