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Ebook Textbook of preclinical conservative dentistry (2/E): Part 2

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Ebook Textbook of preclinical conservative dentistry (2/E): Part 2

CHAPTER8Principles of Tooth PreparationNiíhơGargCHAPTER OUTLINEIntroductionPurpose of Tooth PreparationClassificationDefinitionsNumber of Line and Poi

Ebook Textbook of preclinical conservative dentistry (2/E): Part 2int AnglesStepsInitial StageFinal StageViva QuestionsINTRODUCTION Tooth preparation is the mechanical alteration of a defective, injured or diseased

tooth In order to best receive a restorative material which will re-establish the healthy state of the tooth including esthetic correction when Indica Ebook Textbook of preclinical conservative dentistry (2/E): Part 2

ted along with normal form and function.PURPOSE OF TOOTH PREPARATIONEarlier when the affected tooth was prepared because of carles, cutting of tooth w

Ebook Textbook of preclinical conservative dentistry (2/E): Part 2

as referred to as cavity preparation. But nowadays many Indications other than caries lead to preparation of the tooth. Hence, the term cavity prepara

CHAPTER8Principles of Tooth PreparationNiíhơGargCHAPTER OUTLINEIntroductionPurpose of Tooth PreparationClassificationDefinitionsNumber of Line and Poi

Ebook Textbook of preclinical conservative dentistry (2/E): Part 2d teeth•Replacement of old, defective restorations•Esthetic Improvement for discolored and unesthetic teeth.CLASSIFICATIONTooth preparation is classif

ied according to location of the tooth defect (Fig. 8.1).Class I is the only pH and fissure preparation whereas rest are smooth surface preparations.• Ebook Textbook of preclinical conservative dentistry (2/E): Part 2

Class I: Pit and fissure preparations occur on the occlusal surfaces of premolars and molars, the occlusal two-third of buccal and lingual surface of

Ebook Textbook of preclinical conservative dentistry (2/E): Part 2

molars and lingual surface of incisors (Figs 8.2A and B)•Class li: Preparations on the proximal surface of premolars and molars are class II (Figs 8.3

CHAPTER8Principles of Tooth PreparationNiíhơGargCHAPTER OUTLINEIntroductionPurpose of Tooth PreparationClassificationDefinitionsNumber of Line and Poi

Ebook Textbook of preclinical conservative dentistry (2/E): Part 2arations on the proximal surface of anterior teeth also involving the incisal angle falls under class IV (Figs 8.5A and B)•Class V: Preparations on gi

ngival third of facial and lingual or palatal surfacesofall teeth came under Class V (Figs 8.6A and B)102Textbook ot Preclimcal Conservative Dentistry Ebook Textbook of preclinical conservative dentistry (2/E): Part 2

Figure 8.1: Schematic representation showing GV Black's classification of dental cariesFigures 8.2A and B: (A) Clinical picture of class I lesion; (Bl

Ebook Textbook of preclinical conservative dentistry (2/E): Part 2

Schematic representation of class I lesion showing caries on occlusal surface of molars and premolars, lingual surface of incisors and occlusal third

CHAPTER8Principles of Tooth PreparationNiíhơGargCHAPTER OUTLINEIntroductionPurpose of Tooth PreparationClassificationDefinitionsNumber of Line and Poi

Ebook Textbook of preclinical conservative dentistry (2/E): Part 2ation of Class II lesion

CHAPTER8Principles of Tooth PreparationNiíhơGargCHAPTER OUTLINEIntroductionPurpose of Tooth PreparationClassificationDefinitionsNumber of Line and Poi

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