A clinical, radiographic, and scanning electron microscopic evaluation of adhesive restorations on carious dentin in primary teeth

Cecília C.C. Ribeiro, Luiz N. Baratieri, Jorge Perdigão, Naira M.M. Baratieri, André V. Ritter

Research output: Contribution to journalReview articlepeer-review

Abstract

Objective: The purpose of this project was to evaluate the performance of a dentin adhesive system on carious and noncarious primary dentin in vivo. Method and materials: Forty-eight primary molars with carious lesions were randomly assigned to 2 different treatments: group 1 (control, n = 24) - All identifiable, irreversibly infected dentin was removed prior to the application of the bonding agent and restorative material; group 2 (experimental, n = 24) - Irreversibly infected dentin was partially removed prior to the application of the bonding agent and restorative material. The control and experimental teeth were clinically monitored every 3 months and evaluated 12 months after restoration. The teeth were extracted around the time of exfoliation and processed for scanning electron microscopy. Results: Retention rate, marginal integrity, and pulpal symptoms were identical in both groups. Radiographically, the radiolucent area associated with the experimental restorations did not increase with time in 75% of the cases. For the control group, the adhesive system formed a hybrid layer. In the experimental group, there was morphologic evidence of the formation of an acid-resistant "altered hybrid layer." An acid-resistant tissue, resulting from the interdiffusion of adhesive resin within the area of carious dentin, was observed adjacent to and under the altered hybrid layer. Conclusion: Application of an adhesive restorative system to irreversibly infected dentin did not affect the clinical performance of the restoration.

Original languageEnglish (US)
Pages (from-to)591-599
Number of pages9
JournalQuintessence international
Volume30
Issue number9
StatePublished - Sep 1999

Keywords

  • Caries
  • Dentin bonding agent
  • Primary tooth
  • Resin composite

ASJC Scopus subject areas

  • Dentistry(all)

Fingerprint Dive into the research topics of 'A clinical, radiographic, and scanning electron microscopic evaluation of adhesive restorations on carious dentin in primary teeth'. Together they form a unique fingerprint.

Cite this