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CASE REPORT |
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| Year : 2010 | Volume
: 28
| Issue : 2 | Page : 113-115 |
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NiTi bonded space regainer/maintainer
KS Negi
Assistant Professor, Department of Orthodontics, H. P. Government Dental College and Hospital, Shimla, Himachal Pradesh, India
| Date of Web Publication | 24-Jul-2010 |
Correspondence Address:
K S Negi
Assistant Professor, Department of Orthodontics and Dentofacial Orthopedics, H. P. Government Dental College and Hospital, Shimla, Himachal Pradesh
India
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/0970-4388.66751
 Abstract | | |
Early orthodontic interventions are often initiated in the developing dentition to promote favorable developmental changes. Interceptive orthodontic can eliminate or reduce the severity of a developing malocclusion, the complexity of orthodontic treatment, overall treatment time and cost. Premature loss of deciduous tooth or teeth can often destroy the integrity of normal occlusion. There are many space regaining and maintaining devices mentioned in literature. In this article, I present a simple space regaining method by a piece of nickel titanium (NiTi) wire bonded between the teeth in active loop form, and the unique shape memory property of NiTi wire will upright or move the teeth and the lost space can be regained easily.
Keywords: Light cure composite, NiTi wire, space-regainer
How to cite this article:
Negi K S. NiTi bonded space regainer/maintainer. J Indian Soc Pedod Prev Dent 2010;28:113-5 |
| Introduction | |  |
The dental profession is concerned with the prevention and the effective interception of developing occlusion. An important part of preventive orthodontics is the correct handling of spaces created by the untimely loss of deciduous teeth. As more and more people become aware of the importance of the repair of deciduous teeth, this problem is bound to arise less often, but at present it is major one. Unfortunately, some dentists have been guilty of advising patient to disregard the repair of deciduous teeth because they will be lost. Perhaps it is because children are sometimes more difficult to manage, or on a time and fee basis the results are less productive to the dentist. [1] The space loss due to premature loss of deciduous teeth, especially deciduous molars, can lead to mesial migration of the first permanent molar, disturb the integrity of arch and may cause the impaction or ectopic eruption of the second premolar [Figure 1]a and b. Conventional space regainers used, e.g., spring regainer, lip bumper, active lingual bar, extraoral appliances, etc., have disadvantages like:
- Require multiple visits to dental office,
- Need band formation,
- Complicated laboratory procedures,
- Band may effect gingival health adversely,
- Possibilities of secondary caries under the band, and
- Need patient compliance.
| Materials and Methods | | |
NiTi space regainer/maintainer is simple appliance, can be used chairside in a single visit. A composite dimple is bonded on the buccal side of permanent first molar and with the help of an explorer burrow a tunnel into the mesial of dimple, creating a composite tunnel that is open only on the mesial end. A piece of 0.016 inch NiTi wire is then bonded on the buccal side of primary molar/first premolar and extended beyond the dimple [Figure 2]a.
After the composite has set on both the teeth with the help of birdbeak plier, the free end of wire is directed into the tunnel made in the dimple of first molar [Figure 2]b. This will give a form of activated loop of NiTi wire [Figure 2]. A small amount of bonding material is placed in the opening of the tunnel to make the attachment more permanent [Figure 2]c.
Over time the loop returned to its original shape due to unique shape memory property of NiTi wire, distalizing and uprighting the first molar [Figure 3]a and b. Once the active correction completes, the wire segment is left in place as a passive space maintainer till the eruption of second premolar [Figure 4]a and b. [2]
Advantages of this method are
- The whole procedure can be completed in a single visit at the chair side,
- No need of procedures like impression taking, fitting of bands and soldering,
- Better oral hygiene can be maintained as the appliance is self-cleansing and
- Improved patient compliance.
| Conclusion | | |
Bonded space regainer using NiTi wire is one sitting effective method of regaining and maintaining space.
| References | | |
| 1. | Graber TM. Orthodontics Principle and Practice. 3 rd ed. Philadelphia: W.B. Saunders Company; 1988. p. 637-8.  |
| 2. | Negi KS. Modified bonded space Regainer/Retainer. Orthod Cyber J 2007. Available from: http://www.oc-j.com/sept07/bonded.htm . [cited in 2007]. |
[Figure 1], [Figure 2], [Figure 3], [Figure 4]
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