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Avances en Periodoncia e Implantología Oral

Print version ISSN 1699-6585

Abstract

ALVAREZ-NOVOA GARCIA, C.; BARALLAT SENDAGORTA, L.; SANZ ALONSO, M.  and  BASCONES MARTINEZ, A.. Dimensional changes in tissues after crown lengthening procedures. Avances en Periodoncia [online]. 2012, vol.24, n.2, pp.103-110. ISSN 1699-6585.

Introduction: Short clinical crowns may be treated with crown lengthening techniques. Sometimes teeth need to be restored after the surgery. In these cases it is important not to invade the biological width to avoid the different reactions of the periodontium. The objective of this review is to examine the dimensional changes that occur at the level of hard and soft tissues after surgery in order to plan more accurately the subsequent restoration. Material and Methods: We performed a search in PubMed with the keyword "crown lengthening", limited to English language articles, that were published between the years 1990-2009, which were clinical trials. The recovery of documents was held in the periodicals of the Faculty of Dentistry in UCM, and in Compludoc database. Two evaluators reviewed the papers individually. Results and Discussion: The seven articles, including studies in both animals and humans, which were included in the review, analyzing gingival index, bone level, probing depth, attachment level and biological width, and crown length and the position of the gingival margin. Conclusions: Bone level is altered during the first 3 months, but thereafter remains constant. The longer-term studies found no significant differences in bone probing depth at 6 and 12 months after the surgery.

Keywords : Crown lenghthening; Short clinical crown; Biological width.

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