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Microleakage Assessment of Resin Infiltration Combined Restoration in Artificial Decalcified-Cavitated Lesion

  • Journal of the Korean academy of pediatric dentistry
  • Abbr : J Korean Acad Pediatr Dent
  • 2020, 47(3), pp.257-265
  • DOI : 10.5933/JKAPD.2020.47.3.257
  • Publisher : The Korean Academy Of Pediatric Dentistry
  • Research Area : Medicine and Pharmacy > Dentistry
  • Received : November 5, 2019
  • Accepted : December 3, 2019
  • Published : August 31, 2020

Eunjeong Jang 1 Soyoung Park 1 Shin, Jonghyun ORD ID 2 Shin Kim ORD ID 2 Tae-sung Jeong ORD ID 2

1부산대학교 치의학전문대학원 소아치과학교실
2부산대학교

Accredited

ABSTRACT

This study was performed to evaluate the restoration combined with resin infiltration (RI) of early cavitated smooth surface caries lesion in terms of microleakage. Flowable resin and resin-modified glass ionomer cement (RMGIC) were compared. Sound 20 extracted 3rd molars were divided into 2 groups randomly. Artificial decalcified lesion was induced. Cavities were prepared on the mesial and distal surfaces, and randomly set as experimental and control group. RI was applied to the experimental group before cavity restoration. The control group was restored without RI. In group I and II, flowable resin and RMGIC was used for restoration respectively. After thermocycling and silver nitrate immersion, microleakage was assessed by μ-CT. Depth of microleakage was lower in experimental group than control group only in group II (p = 0.05). Microleakage depth was lower in group II than group I in both experimental and control groups (p = 0.05). RI pretreatment before restoration of early cavitated caries lesions might reduce the microleakage and help long-term maintenance of restoration. In this study, RMGIC was less polymerization shrinkage. Restoration with RMGIC after RI pretreatment reduced the microleakage of the restoration compared to the flowable resin.

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