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Quintessence Publishing: Journals: ORTHODONTICS
The Art and Practice of Dentofacial Enhancement

Formerly World Journal of Orthodontics

Edited by
Rafi Romano, DMD, MSc (Editor-in-Chief)

ISSN 2160-2999 (print) / ISSN 2160-3006 (online)

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Winter 2011
Volume 12 , Issue 4

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Double impact: Intrusion of two mandibular molars using an SAS—A case report

Kartik D. Dholakia, BDS, MDS/Shweta R. Bhat, BDS, MDS

Pages: 378–385
PMID: 22299110

The size of the envelope of tooth movements using fixed mechanotherapy has been increased with the use of temporary anchorage devices (TADs). Orthodontic mini-implants, a form of TADs, have been successfully used for achieving a variety of tooth movements, such as bodily retraction, extrusion, protraction, and even intrusion of maxillary molars. However, the use of orthodontic mini-implants for intruding mandibular molars is questionable due to anatomical constraints. Skeletal anchorage systems (SASs), another form of TADs, overcome these limitations to give promising results for mandibular molar intrusion. The following case report shows the use of unilateral SAS for intruding two mandibular molars and extruding a maxillary molar of the same side to establish a stable occlusal plane. The amount of intrusion achieved in relation to mandibular molars was evaluated by comparing panoramic images. The mandibular left first and second molars were intruded by approximately 1.6 and 2.5 mm, respectively, in relation to the occlusal plane. ORTHODONTICS (CHIC) 2011;12:378–385.

Key words: intrusion, mandibular molars, panoramic radiograph, SAS

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