Trojrozměrné optické stanovení experimentálního iatrogenního mechanického poškození psí zubní skloviny způsobené sonickým odstraňovačem zubního kamene

Three-dimensional optical assessment of experimental iatrogenic mechanical damage to canine dental enamel caused by a sonic scaler

journal article in Web of Science

en

Removal of dental calculus deposits is one of the basic parts of professional dental cleaning. Despite the popularity of power-driven scalers, several risks are associated with their use, mechanical damage of the enamel surface being one of the most important. The present study evaluated enamel damage caused by a sonic scaler in different work patterns to quantify the damage and allow a clear comparison. Seventy-five canine teeth were carefully extracted from twenty-three dogs. The scaler was used on a clean surface with several combinations of time (five to twenty seconds) and parts of the scaler (point vs. side of the tip). Subsequently, damaged surface topography was mapped using three-dimensional optical microscopy. The results revealed a high variance in defect depth which was influenced by both factors. Statistical assessment confirmed highly significant (P < 0.001) or at least significant (P < 0.05) differences in data acquired for each group. As expected, the shallowest defects were produced by the scaler side in the shortest experimental period (five seconds). Point use proved to be quite damaging, as it resulted in approximately four times higher median values than the side in the same timeframe. Therefore, it is crucial to follow all safety precautions when handling a power-driven scaler even during routine treatments. Use of the side of the tip and constant movement on the tooth surface are essential to reduce the risk of enamel damage.

Tato studie hodnotila poškození skloviny způsobené sonickým odstraňovačem zubního kamene s použitím různýchzpůsobů k určení poškození a jejich srovnání. Sedmdesát pět špičáků bylo pečlivě extrahováno u dvaceti tří psů. Odstraňovač byl používán na čisté ploše s několika kombinacemi časování (pět až dvacet sekund) a částí odstraňovače (vrchol vs. strana špička). Následně byl poškozený povrch zmapován pomocí trojrozměrného optické mikroskopie. Výsledky ukázaly vysokou variabilitu v hloubce poškození, která byla ovlivněna oběma faktory. Statistické vyhodnocení potvrdilo velmi významný (p <0,001) nebo alespoň významný (P <0,05) rozdíl v údajích získaných pro každou skupinu. Jak se dalo očekávat, nejmělčejší defekty byly vyrobeny použitím boku odstraňovače v co nejkratší době experimentu (pět sekund). Použití vrcholu se ukázalo být docela škodlivé, protože mělo za následek přibližně čtyřikrát vyšší střední hodnoty hloubky než u strany při stejném čase.

Removal of dental calculus deposits is one of the basic parts of professional dental cleaning. Despite the popularity of power-driven scalers, several risks are associated with their use, mechanical damage of the enamel surface being one of the most important. The present study evaluated enamel damage caused by a sonic scaler in different work patterns to quantify the damage and allow a clear comparison. Seventy-five canine teeth were carefully extracted from twenty-three dogs. The scaler was used on a clean surface with several combinations of time (five to twenty seconds) and parts of the scaler (point vs. side of the tip). Subsequently, damaged surface topography was mapped using three-dimensional optical microscopy. The results revealed a high variance in defect depth which was influenced by both factors. Statistical assessment confirmed highly significant (P < 0.001) or at least significant (P < 0.05) differences in data acquired for each group. As expected, the shallowest defects were produced by the scaler side in the shortest experimental period (five seconds). Point use proved to be quite damaging, as it resulted in approximately four times higher median values than the side in the same timeframe. Therefore, it is crucial to follow all safety precautions when handling a power-driven scaler even during routine treatments. Use of the side of the tip and constant movement on the tooth surface are essential to reduce the risk of enamel damage.

profilometrie; parodontologické ošetření; zuby; zubní kámen

profilometry; periodontal treatment; teeth; tartar

2014

01.12.2014

CZECH ACADEMY AGRICULTURAL SCIENCES

PRAGUE, CZECH REPUBLIC

0375-8427

59

6

293–298

6