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J Orthod Sci. 2017 Apr-Jun;6(2):76-80. doi: 10.4103/2278-0203.205454.

Early correction of unilateral scissor bite using transforce appliance and modified twin block appliance.

Author information

1
Department of Orthodontics, Nair Dental College and Hospital, Mumbai, Maharashtra, India.
2
Department of Dentistry, Government Medical College and Hospital, Nanded, Maharashtra, India.
3
Department of Orthodontics, Government Dental College and Hospital, Nagpur, Maharashtra, India.
4
Department of Orthodontics and Dentofacial Orthopedics, CSMSS Dental College and Hospital, Aurangabad, Maharashtra, India.

Abstract

Early treatment of scissor bite has been advocated mainly to prevent function jaw shift that can eventually lead to permanent skeletal asymmetry and temporomandibular joint pathosis. Although unilateral scissor bite is more common, most of the times, bilateral mandibular expansion is indicated. Lingual transforce appliance can be useful in such cases. This article presents a patient with unilateral scissor bite in mixed dentition with alveolar narrowing. Transforce appliance was used for scissor bite correction followed by modified twin block appliance for stabilization and settling of occlusion till the eruption of premolars. The case was finished with fixed mechanotherapy. Two years after completion of treatment, results were well maintained. Our results suggest that lingual transforce appliance along with careful management of occlusion is effective in the early management of severe unilateral scissor bite.

KEYWORDS:

Scissor bite; transforce appliance; twin block

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