title: Microleakage of inlay ceramic systems luted with self-adhesive resin cements.
abstract: OBJECTIVE
  To evaluate the microleakage of Cerec 3, IPS e.max Press, and Turkom-Cera inlays cemented with three self-adhesive resin cements.
  
  
  METHODS
  Ninety standardized class III MOD cavities were prepared in intact human mandibular third molars. Ceramic inlays were fabricated according to the manufacturer's instructions and were cemented using three self-adhesive resin cements (RelyX Unicem, Smartcem 2, and SpeedCEM). The specimens were stored in distilled water at 37°C for 24 h and subjected to 1000 thermocycles in water between 5°C and 55°C with a dwell time of 30 s. Subsequently, the specimens were subjected to 100,000 cycles of mechanical loading of 50 N at 1.6 Hz in 37°C water. The specimens were immersed in 0.5% basic fuchsine for 24 h and were sectioned using a low-speed diamond blade. The percentage of dye leakage at the tooth/restoration interface was measured and compared by Kruskal-Wallis tests with Bonferonni correction and Mann-Whitney U-tests at a significance level of p<0.05.
  
  
  RESULTS
  Microleakage at the RelyX Unicem interface was lower than that with Smartcem 2 and SpeedCEM resin cements (p<0.05). Microleakage of the Turkom-Cera system was higher than Cerec 3 and IPS e.max Press ceramic inlays (p<0.05).
  
  
  CONCLUSIONS
  Regardless of the ceramic system and self-adhesive resin cement used, dentin margins were associated with higher microleakage than enamel margins.
authors.forename: Bulent
authors.initials: B
authors.lastname: Uludag
authors.forename: Elif
authors.initials: E
authors.lastname: Yucedag
authors.forename: Volkan
authors.initials: V
authors.lastname: Sahin
mesh_terms: D000134:Acid Etching, Dental / Q000379:methods; D000537:Aluminum Oxide / Q000737:chemistry; D000538:Aluminum Silicates / Q000737:chemistry; D002484:Cementation / Q000379:methods*; D002516:Ceramics / Q000737:chemistry; D004396:Coloring Agents; D003743:Dental Enamel / Q000648:ultrastructure; D003763:Dental Leakage / Q000145:classification*; D003776:Dental Porcelain / Q000737:chemistry*; D003804:Dentin / Q000648:ultrastructure; D006801:Humans; D007284:Inlays; D008422:Materials Testing; D017680:Potassium Compounds / Q000737:chemistry; D019279:Resin Cements / Q000737:chemistry*; D012394:Rosaniline Dyes; D012821:Silanes / Q000737:chemistry; D013314:Stress, Mechanical; D013499:Surface Properties; D013696:Temperature; D013997:Time Factors; D014867:Water / Q000737:chemistry
chemical_list: D000538:Aluminum Silicates; D004396:Coloring Agents; C508050:IPS e.max Press; D017680:Potassium Compounds; C483701:Rely X Unicem; D019279:Resin Cements; D012394:Rosaniline Dyes; D012821:Silanes; C493120:lithia disilicate; D014867:Water; D003776:Dental Porcelain; C016447:feldspar; C074543:Cerec; C025485:basic fuchsin; D000537:Aluminum Oxide