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CONTACTS AND CONTOURS IN DENTISTRY
This document discusses contacts and contours in dentistry. It defines contact as the proximal height between adjacent teeth, while contour refers to convexities and concavities on tooth surfaces. Ideal contacts and contours are important for maintaining dental arch integrity, preventing food impaction, and protecting soft tissues. The document classifies different contact point locations and types, as well as discussing techniques for reproducing contacts in restorations. It also addresses potential problems with improper contacts and contours.
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Editor's Notes
- #17 Interdental col – the interdental gingiva that lies between the teeth which occupies the ginigival embrasure which is the interproximal space beneath the tooth contact.
- #18 Faulty contacts leads to restorative defects which hampers the health of the periodontium
- #23 From the periodontal view both supragingival and equigingival margins are well to be tolerated
- #31 , proximal crowns are flat generally or concave, provides adequate embrasure space and plaque removal , transitional line angle houses the interdental tissue ie.
- #35 The convexities which create the marginal ridges disappear at the contact and remaining of the surface is usually flat.
- #36 Proximal contours are convex from incisal angle to the cervix Bicuspids of ovoid type are bell shaped with the convex surface running from marginal ridges and convex from buccal to lingual axial angles. Mesial surface of this type of molars presents convex areas , distal surface are usually convex in all direction
- #66 Pro-Matrix is a single-use solution for amalgam and composite restorations for use in all quadrants in every class. Available as a standard matrix band and a contoured band“These matrix bands are pre-assembled. They save time and are very convenient.”