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Tooth Grooves or Concavities

1. Naturally occurring development grooves and valleys on the surface of the teeth often cause difficulties self-care on site and can be a local factor for gingivitis and periodontal disease because of the increased plaque biofilm hold it in place.

2. In the natural development of individual incisors, GROOVE forms on the lingual surfaces of the tooth. This groove development of the defect is called palatogmgival groove and most commonly seen on the maxillary lateral incisors. Plaque biofilm storage is a common problem associated with palatogingi Val-NOTCH with the NOTCH is often difficult or impossible to effectively clean (Fig. 7-4).

3. Some of the surface of the tooth root, naturally occurring depression or depression, which can lead to plaque biofilm retention (Fig. 7-5). In the mesial surface maxillary first premolars often has a distinct concavity of the surface. This concavity is a natural path that the tooth, but when hit in the mouth, can make it extremely difficult for the patient to maintain effective self-management in place. Fig. 7.6 shows an example of how the tooth concavity can prevent a thorough self-control even for a patient in the qualified use dental floss. Tooth developmental grooves

Tooth developmental grooves..

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