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ClinicalTrials.gov Identifier: NCT01402323
Recruitment Status : Unknown
Verified July 2011 by Medical University of Vienna. Recruitment status was: Recruiting
Clefts or invaginations of the gingival tissue are a frequent finding during orthodontic space closure after extraction of a tooth. They occur in about 35% of the cases. Increased risk of developing a gingival cleft is given in the mandibular arch. A gingival invagination impairs aesthetics, orthodontic treatment and periodontal health. The aim of this prospective split-mouth designed observer blinded study is to evaluate possible differences between tooth movement in recent or in healed extraction sockets on incidence of gingival clefts. We hypothesize, that similar to the results originated from an animal study immediate movement in extraction sockets reduces incidence of gingival clefts during orthodontic space closure.
Condition or disease
Gingival CleftsExtraction SocketOrthodontic Movement
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Ages Eligible for Study:
10 Years and older (Child, Adult, Senior)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
extraction of both molars or premolars in the upper or lower jaw and orthodontic space closure
periodontal status not allowing orthodontic treatment