Baltic Dental and Maxillofacial Journal
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September, 2006, Vol. 8, No. 3



Evaluation of diametral tensile strength and knoop microhardness of five nanofilled composites in dentin and enamel shades

A scanning electron microscopic study of debris and smear layer remaining following use of AET instruments and K-flexofiles

Factors related to apical root resorption of maxillary incisors in orthodontic patients

Effect of the lower third molars on the lower dental arch crowding

Changes in the periodontal condition after replacement of swaged crowns by metal

Surgical lengthening of the clinical tooth crown

The relationship between blood serum lipids and periodontal condition

© 2006 Stomatologija

Stomatologija 2006; 8 (3): 88-95 614 KB

Surgical lengthening of the clinical tooth crown

Liudvikas Planciunas, Alina Puriene, Grazina Mackeviciene


To understand why the crown lengthening may be desirable, a review of periodontal anatomy is in order. The odontologists know, but often underestimate importance of periodontal tissues health to restoration of defected teeth or dental arches. In order to avoid pathological changes, to predict treatment results more precisely, it is necessary to keep gingival biological width unaltered during teeth restoration. If there are less than 2 mm from restoration's margin to marginal bone clinical crown lengthening possibility should be considered in dental treatment plan. The choice depends on relationship of crown-root-alveolar bone and esthetical expectations. In order to keep margins of restoration supragingivally the distance from marginal bone to margins of restoration should not be less than 3 mm. Ideally the margins of restoration should be supragingivally or in the same level as marginal gingiva. When the margins of restoration are prepared subgingivally, the distance from marginal gingiva to margins of restoration should not be more than 0.7 mm. To continue dental treatment in operated area is recommended not earlier than in 4 weeks, and making restorations in esthetical area - not earlier than in 6 weeks.

Key words: crown lengthening, gingival biological width, periosurgery.

Received: 06 08 2006

Accepted for publishing: 26 09 2006

*Institute of Odontology Medical Faculty Vilnius University

Liudvikas Planciunas* – D.D.S.

Alina Puriene* – D.D.S., PhD, assoc. prof.

Grazina Mackeviciene* – D.D.S., assist. prof

Address correspondence to Liudvikas Planciunas Institute of Odontology, Faculty of Medicine, Vilnius University, Zalgirio 115, 08217 Vilnius, Lithuania.