The Effect of Ultrasonic Instruments on the Quality of Preparation Margins and Bonding to Dentin

Ellis, Rebecca; Bennani, Vincent; Purton, David G.; Chandler, Nicholas; Lowe, Bronwyn

doi:10.1111/j.1708-8240.2011.00495.x

Cited by 19 publications

(23 citation statements)

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“…The quality of the dentin surface has influenced the bond strength of the restauration [30]. Differences in the quality of dentin surface and the bond strength after preparation with different kinds of ultrasonic preparation tips have also been reported [16].…”

Section: Discussionmentioning

confidence: 99%

“…Different instruments must be used to stabilize and improve the adhesive interface and the overall dental restoration quality [7]. However, their effects on the dentin and enamel surfaces are contradictory [16]. It is known that rotating instruments, compared to sonic and ultrasonic instruments, result in more mod-cavity proximal box border defects, very irregular surfaces [9], and iatrogenic damage to adjacent teeth.…”

Section: Discussionmentioning

confidence: 99%

“…The marginal quality of the ceramic inlay approximal area is of clinical importance because the ceramic inlay approximal area is located in the interdental space, and tooth brushing in this area is restricted [16,26].…”

Section: Introductionmentioning

confidence: 99%

“…This mechanical damage may result in possible biological complications, such as tooth sensitivity and bacterial leakage [7]. Different types of instrumental methods for dental cavity preparation are currently in use: conventional-rotating [9], laser [1,14,15], sonic [9], or ultrasonic preparation [16,17]. Mechanical damage of the teeth is more likely to occur with the use of rotating instruments [9].…”

Section: Introductionmentioning

confidence: 99%

“…Mechanical damage of the teeth is more likely to occur with the use of rotating instruments [9]. Ultrasonic instruments are widely used in dentistry because of better efficiency, visualization, operative convenience, precise cutting ability [17], and success in accessing difficult areas on the preparation margin [16].…”

Section: Introductionmentioning

confidence: 99%

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Marginal quality of ceramic inlays after three different instrumental cavity preparation methods of the proximal boxes

et al. 2018

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Objectives The marginal quality of ceramic inlays was evaluated after the use of three different instrumental finishing methods in mesio-occluso-distal (mod) cavity boxes in vitro after hydrothermal loading (HTL). Materials and methods Caries-free human molars were divided into three groups. Mod-cavities were conventionally prepared. Box finishing was performed in every group with rotating (RI), sonic (SI), or ultrasonic (USI) instruments. Surface roughness was examined. Twelve mod-cavities remained untreated. Continuous margin quality was evaluated with scanning electron microscopy (SEM). Ceramic inlays were cemented into cavities. After HTL microleakage, marginal and absolute marginal gaps were examined. All data were analyzed statistically. Results Significant differences were found, between cavity surface roughness of RI and SI groups, the RI and USI groups, but not between microleakage, marginal, absolute marginal gaps after HTL and in proximal marginal quality. No correlations between microleakage and marginal gaps nor between microleakage and surface roughness were found. Conclusion Mod-cavity proximal box finishing with SI or USI resulted in a higher surface roughness than the use of RI. The type of the finishing method did not influence the marginal quality of ceramic inlays. For the mod-cavity finishing, the use of SI and USI could be an alternative instrumental method to conventional RI methods with a lower risk of iatrogenic damage of the adjacent teeth. Clinical relevance This study allows the practitioner to better determine the proper indications and limitations of the sonic and ultrasonic instruments for mod-cavity proximal box finishing.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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