Komet 8372PL 314 023 Bur - Pack 5

Pack (5). Non-traumatic placement of crown margins is one of the most important parameters for the periodontal health of a restored tooth. Studies have shown that sub gingival restoration margins may lead to a more or less severe inflammation of the marginal periodontium. Under these aspects, it is frequently impossible to place a restoration at supragingival level, due to the defect morphology and, especially in the anterior area, for aesthetic reasons. In such cases it is necessary to place the restoration margin in a non-traumatic way without damaging the periodontal tissue. A prerequisite for a successful tissue-friendly crown preparation is a sound periodontium which, if necessary, may be achieved through a systematic periodontal therapy to be completed beforehand. Advantages: Guide pin as “horizontal distance keeper”: For circular material reduction the guide pin guarantees controlled preparation with an even cutting depth. This way a uniform preparation is created, avoiding the “gutter” effect. Controlled preparation of a defined crown margin Guide pin as “vertical distance keeper”: During the preparation of a subgingival margin the 0.5 mm long guide pin assures that a pre-defined distance to the periodontium is kept. Damage to the biological width* (the area at the coronal side of the alveolar bone) is largely avoided.

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