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 Table of Contents  
Year : 2016  |  Volume : 50  |  Issue : 1  |  Page : 59-60

A novel approach for the correction of unilateral scissor bite using micro-implants

1 Senior Lecturer, Department of Orthodontics, Dr. R. R. Kambe Dental College and Hospital, Akola, Maharashtra, India
2 Professor and Head, Department of Orthodontics, SMBT Dental College and Hospital, Sangamner, Maharashtra, India
3 Senior Lecturer, Department of Orthodontics, SMBT Dental College and Hospital, Sangamner, Maharashtra, India

Date of Submission15-Sep-2015
Date of Acceptance20-Dec-2015
Date of Web Publication4-Feb-2016

Correspondence Address:
Pawankumar Dnyandeo Tekale
Dnyanita Orthodontic Care, Opp. District Court, Adalat Road, Aurangabad - 431 001, Maharashtra
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0301-5742.175733

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Unilateral scissor bite is a relatively rare malocclusion. However, its correction is often difficult and a challenge for clinician. This present "short clinical communication" indicates the versatility and use of micro-implants for the correction of severe unilateral scissor bite in an adult case.

Keywords: Anchorage, micro-implant, scissor bite

How to cite this article:
Tekale PD, Vakil KK, Vakil JK. A novel approach for the correction of unilateral scissor bite using micro-implants. J Indian Orthod Soc 2016;50:59-60

How to cite this URL:
Tekale PD, Vakil KK, Vakil JK. A novel approach for the correction of unilateral scissor bite using micro-implants. J Indian Orthod Soc [serial online] 2016 [cited 2019 May 19];50:59-60. Available from: http://www.jios.in/text.asp?2016/50/1/59/175733

  Introduction Top

Unilateral scissor bite occurs in about 1.5% of the population and is difficult to treat orthodontically. [1],[2] Conventional treatment mechanics do not offer a complete solution for the correction of severe transverse discrepancy, especially in adult patients.

  Diagnosis Top

A 26-year-old male reported with the chief complaint of irregularly placed upper front teeth and difficulty in chewing from the right side of the mouth. The clinical examination revealed skeletal Class II base with orthognathic maxilla and retrognathic mandible, scissor bite on right side, severe crowding in mandibular anterior segment, increased overjet, and deep anterior overbite [Figure 1]a].
Figure 1: (a) Pretreatment intraoral photographs. (b) Placement of micro-implant and application of force with elastomeric chain. (c) Posttreatment intraoral photographs

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  Technique Top

  • A 0.022" × 0.028" MBT slot prescription was used. After leveling and alignment of upper arch, anterior bite plate with inclined plane was cemented which aided the disclusion of posterior teeth [Figure 1]b]
  • Micro-implant (Dentos, 1312-08) was placed on the right side between the roots of mandibular second premolar and first molar [Figure 1]b]
  • In the right posterior segment, a 0.019" × 0.025" stainless steel (SS) sectional wire was placed from first premolar till the second molar [Figure 1]b]
  • SS buttons were bonded on mandibular first and second premolars and welded lingually on molar bands of first and second molars. Continuous ligation was done from mandibular first premolar to second molar. Anchorage was reinforced and posterior segment was made into a single unit [Figure 1]b]
  • 0.010" ligature wire (3 times twisted together forming a thick section) was secured with composite resin on occlusal aspect of mandibular first and second premolars and first molar [Figure 1]b]
  • Force was applied with an elastic chain that was attached from the button on lingual side of mandibular first molar to the micro-implant [Figure 1]b].

  Discussion Top

Adult patients with a severe scissor bite are generally managed by surgical-orthodontic correction. [1] Nonsurgical options for correcting posterior scissors-bite, include edgewise appliances, transpalatal arch with inter-maxillary elastics, [2] lingual arch appliances with intermaxillary elastics, [3] and modified transpalatal arch. [4] The distinct disadvantages of elastics are patient compliance and undesirable extrusive forces on anchor teeth.

In the present case, buccal uprighting of the mandibular premolars and molars was achieved with the help of micro-implants. Duration for the correction of scissor bite was approximately 7 months [Figure 1]c]. The patient discontinued the orthodontic treatment after correction of scissor bite due to his personal and professional reasons.

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Conflicts of interest

There are no conflicts of interest.

  References Top

Ramsay DS, Wallen TR, Bloomquist DS. Case report MM. Surgical-orthodontic correction of bilateral buccal crossbite (Brodie syndrome) Angle Orthod 1990;60:305-11.  Back to cited text no. 1
Nakamura S, Miyajima K, Nagahara K, Yokoi Y. Correction of single-tooth crossbite. J Clin Orthod 1995;29:257-62.  Back to cited text no. 2
Lim KF. Correction of posterior single-tooth crossbite. J Clin Orthod 1996;30:276.  Back to cited text no. 3
Reddy V, Reddy R, Parmar R. A modified transpalatal arch for correction of scissor bite. J Clin Orthod 2012;46:308-9.  Back to cited text no. 4


  [Figure 1]


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