Survival of glass ionomer restorations placed in primary molars using atraumatic restorative treatment (ART) and conventional cavity preparations: 2-year results.
OBJECTIVE
To compare the survival of glass ionomer cement (GIC) restorations placed in a dental clinic setting using both the atraumatic restorative treatment (ART) approach with hand instruments, and conventional cavity preparation with rotary instruments.


METHODS
Two encapsulated high-strength conventional GICs (Fuji IX GP, Ketac-Molar Aplicap) were placed in 82 Class I and 53 Class II preparations and one encapsulated non-gamma 2 amalgam alloy (GK-amalgam) was placed in 32 Class I preparations, in the primary molars of 60 Chinese children with a mean age of 7.40 +/- 1.24 (SD) years. Thus, 9 treatment groups were formed.


RESULTS
After two years, there were no significant survival differences found among 7 of the 9 treatment groups (p = 0.99). However, two groups comprising Fuji IX GP and Ketac-Molar Aplicap placed in Class II cavities prepared using the ART approach showed significantly lower restoration survivals (p < 0.001). Only 3 of the 72 initially sealed fissures adjacent to the restorations appeared to retain any GIC material.


CONCLUSIONS
In a clinic setting, both the ART hand instrument and conventional rotary instrument methods were equally suitable for high Class I restoration survival, but not for Class II restoration survival where the conventional cavity preparation method was preferable.
Yu
C
C
Gao
X J
XJ
Deng
D M
DM
Yip
H K
HK
Smales
R J
RJ
D002648:Child; D003723:Dental Amalgam; D003737:Dental Cavity Preparation / Q000295:instrumentation* / Q000379:methods*; D019232:Dental Restoration Failure; D003793:Dental Restoration, Permanent / Q000379:methods*; D005899:Glass Ionomer Cements; D006801:Humans; D019060:Minimally Invasive Surgical Procedures; D016019:Survival Analysis; D014094:Tooth, Deciduous; D016896:Treatment Outcome
C439808:Fuji IX GP Fast; D005899:Glass Ionomer Cements; C424245:Ketac-Molar Aplicap; D003723:Dental Amalgam