title: Clinical performance of a resin-modified glass-ionomer and a compomer in restoring non-carious cervical lesions. 5-year results.
abstract: OBJECTIVE
  To evaluate the 5-yr clinical performance of a resin-modified glass-ionomer cement and a polyacid-modified resin composite in restoring non-carious cervical lesions.
  
  
  METHODS
  Non-carious cervical lesions in 46 incisors, canines, and premolars were restored either with Fuji II LC (n=18) or with Dyract (n=28) in 16 healthy patients. The lesions were restored without cavity preparation strictly according to the manufacturer's instructions. The restorations were clinically evaluated single blind after 5 yrs using modified USPHS criteria.
  
  
  RESULTS
  The percentage of Alfa ratings were as follows (Dyract/Fuji II LC): color match 81.3%/28.6%, surface texture 93.8%/21.4%, anatomic form 75.0%/28.6%, marginal integrity (enamel) 62.5%/42.9%, marginal integrity (dentin) 68.8%/28.6%, marginal discoloration (enamel) 56.3%/42.9%, marginal discoloration (dentin) 68.8%/21.5%. Five-yr data revealed a significant difference between the clinical ratings of Dyract and Fuji II LC for all criteria except marginal integrity and marginal discoloration in enamel. A total of five Dyract restorations and four Fuji II LC restorations failed within the study period.
  
  
  CONCLUSIONS
  A considerably high and almost similar overall failure rate was found for both restorative materials in restoring non-carious cervical lesions. However, retained Dyract restorations presented superior clinical performance compared to Fuji II LC restorations.
authors.affiliation: Department of Operative Dentistry & Periodontology, Ludwig-Maximilians University, München, Germany. mflowa@dent.med.uni-muenchen.de
authors.forename: M
authors.initials: M
authors.lastname: Folwaczny
authors.forename: A
authors.initials: A
authors.lastname: Mehl
authors.forename: K H
authors.initials: KH
authors.lastname: Kunzelmann
authors.forename: R
authors.initials: R
authors.lastname: Hickel
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry; D000328:Adult; D000368:Aged; D016009:Chi-Square Distribution; D003116:Color; D020770:Compomers / Q000737:chemistry*; D003743:Dental Enamel / Q000648:ultrastructure; D018772:Dental Marginal Adaptation; D003793:Dental Restoration, Permanent / Q000379:methods*; D003804:Dentin / Q000648:ultrastructure; D017220:Dentin-Bonding Agents / Q000737:chemistry; D005500:Follow-Up Studies; D005899:Glass Ionomer Cements / Q000737:chemistry*; D006801:Humans; D008689:Methacrylates / Q000737:chemistry; D008875:Middle Aged; D019279:Resin Cements / Q000737:chemistry*; D012117:Resins, Synthetic / Q000737:chemistry; D017640:Silicates / Q000737:chemistry; D016037:Single-Blind Method; D013223:Statistics as Topic; D013499:Surface Properties; D019237:Tooth Cervix / Q000473:pathology*; D014075:Tooth Discoloration / Q000145:classification; D014076:Tooth Diseases / Q000628:therapy*
chemical_list: D000180:Acrylic Resins; D020770:Compomers; D017220:Dentin-Bonding Agents; C088486:Dyract; C079765:Fuji II LC cement; D005899:Glass Ionomer Cements; D008689:Methacrylates; D019279:Resin Cements; D012117:Resins, Synthetic; D017640:Silicates; C006903:carbopol 940