Measurement of preventive resin restorations using computer profilometry.

J. P. Conry, J. P. Beyer, M. R. Pintado, W. H. Douglas

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


The amount of extracoronal material placed when a tooth is restored with a preventive resin restoration (PRR) was quantitatively measured together with the projected area of each cavity preparation. Thirty-three patients (mean age 11 yrs, 6 mos) requiring a PRR on a lower first permanent molar were selected. Impressions of the teeth were made with polyvinylsiloxane before and after cavity preparation and then restored with P-50 and Concise sealant. Following occlusal adjustment, a third impression was taken. Replicas were digitized using computer profilometry. Computer images of occlusal surfaces were superimposed using a "goodness of fit" method. The volume of extracoronal material placed on all molar teeth (n = 33) was X = 6.52 +/- 2.9 mm3. The mean depth applied was X = 222.52 +/- 83.09 mu and the mean area of material applied over the entire tooth surface was X = 27.13 +/- 5.72 mm2. The cavity preparations occupied, on average 19.02 percent of the occlusal surface.

Original languageEnglish (US)
Pages (from-to)177-181
Number of pages5
JournalASDC journal of dentistry for children
Issue number3
StatePublished - Jan 1 1992


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