Sealed restorations: 5-year results.
This clinical study determined the feasibility of a sealed resin composite restoration to arrest dental caries using a minimal tooth preparation: a bevel in enamel only without removal of the carious lesion. These ultra-conservative sealed composite restorations placed over caries (CompS/C) were compared with ultra-conservative sealed amalgam restorations (AGS) that had no "extension for prevention". The CompS/C restorations were also compared with the traditional (unsealed) amalgam restorations (AGU) with the "extension for prevention" outline form. Caries progress, as determined by standardized radiographs, revealed that after 5 years caries remained arrested under the CompS/C restorations; the marginal integrity was similar for the CompS/C and the AGS groups, and exhibited highly significant superiority to the AGU restorations (Chi square, P less than = 0.00004). Complete sealant retention over the amalgam restorations (AGS group) was less than over the composite restorations (CompS/C), and conversely, partial sealant retention was higher for the AGS group. Sealants also appeared to protect the posterior composite restorations against wear.
Mertz-Fairhurst
E J
EJ
Department of Restorative Dentistry, Medical College of Georgia.
Richards
E E
EE
Williams
J E
JE
Smith
C D
CD
Mackert
J R
JR
Schuster
G S
GS
Sherrer
J D
JD
O'Dell
N L
NL
Pierce
K L
KL
Wenner
K K
KK
D000293:Adolescent; D000328:Adult; D016009:Chi-Square Distribution; D002648:Child; D003188:Composite Resins; D003723:Dental Amalgam; D003731:Dental Caries / Q000628:therapy*; D003737:Dental Cavity Preparation; D003793:Dental Restoration, Permanent / Q000379:methods*; D006801:Humans; D008875:Middle Aged; D010895:Pit and Fissure Sealants / Q000627:therapeutic use*
D003188:Composite Resins; D010895:Pit and Fissure Sealants; D003723:Dental Amalgam