Pulp capping is a procedure that comprises adequate protection of the pulp tissue exposed to the oral environment, aiming at the preservation of its vitality and functions. This study evaluated the response of the dental pulps of dog teeth to capping with mineral trioxide aggregate (MTA) or calcium hydroxide P.A. For that purpose, 37 teeth were divided into two groups, according to the capping ...

The laccase-mediator system in laccase-aided chlorine dioxide bleaching of bagasse pulp was optimized using response surface methodology (RSM). The effects and interactions of the laccase enzyme dosage, the dosage of the mediator 1-hydroxybenzotriazole (HBT), and the reaction time on the adsorbed organic halogen (AOX) content of the wastewater as well as the brightness and kappa number of the p...

各種歯科用レーザーのなかで，Er:YAGレーザーとEr,Cr:YSGGレーザーは各種歯科治療へ幅広く適用され，歯の切削にも用いられる．当講座は，歯冠修復への各種歯科用レーザーの応用について20年ほど前から基礎研究を継続している．近年では，歯を効率的に切削できるEr,Cr:YSGGレーザーに注目し，このレーザーの切削歯面に対する接着改善，照射条件と切削効率，切削後の歯髄反応等について研究を行ってきた．本稿では，これまでの研究成果を基にして，歯のレーザー切削によって生じる歯髄反応をメインに，露髄面へのレーザー照射による歯髄反応についても解説する．

The aim of this study was to evaluate histopathologically the pulp tissue response of the researched materials 7 and 30 days after their application. The reaction of pulp tissue has been examined on first upper molars in 24 Wistar rats, following the previously set parameters. For that purpose, 48 class V cavities were prepared with a high-speed handpiece using a diamond burr under copious wate...

The purpose of this report is to describe the histopathology of radiolucent lesions associated with pulp necrosis in primary molars. Twenty-one carious, previously untreated, primary molars with radiolucent lesions were extracted with forceps under local anesthesia. If a lesion remained attached to the root, the specimen was transferred to 10% neutral buffered formalin. The sockets were gently ...

PURPOSE The purpose of this study was to evaluate histologically the effect of an enamel matrix derivative as a pulpotomy agent in primary canines. METHODS Ten carious primary canines among teeth deemed for serial extraction were selected for this study. Emdogain gel was used as the pulp dressing material on the amputated pulp stumps. Teeth were extracted postoperatively after: (1) 1 week; (2...

Restorative and endodontic procedures have been recently developed in an attempt to preserve the vitality of dental pulp after exposure to external stimuli, such as caries infection or traumatic injury. When damage to dental pulp is reversible, pulp wound healing can proceed, whereas irreversible damage induces pathological changes in dental pulp, eventually requiring its removal. Nonvital teet...

This study was conducted to observe the response of dog's dental pulp to hydrpxylapatite (Hap) and calcium hydroxide when used as pulp capping materials. After the pulps of 22 teeth were exposed, they were capped with either Hap or calcium hydroxide. Histological analysis was performed 8 weeks after treatment. Results showed that pulp exposure caused irreversible injury of odontoblasts, which w...

Regenerative endodontic procedures are the emerging techniques for the restoration of functional pulp and dentine. The case report presented here describes the management of a symptomatic mandibular first molar with an immature apex and necrotic pulp in a 9 year old child. The tooth was tender on percussion and palpation and elicited a negative response to sensibility testing. A regenerative en...