Year : 2019

Volume : Volume 10

Issue : Issue 2s

Address for correspondence :
Dr. Matangi Pratik.
matangi.pratik16@gmail.com

Abstract

Background:  Nonsurgical correction of deep bite involves either extrusion of posterior teeth, the intrusion of incisors, or a combination of both. The introduction of skeletal anchorage device with mini-implant provides near-absolute anchorage without producing any untoward effects on the anchor unit. Connecticut Intrusion Arch (CIA) provided an efficient system of intruding anterior segment without producing any adverse effects on anchor teeth. Material and Methods: The study comprised of 30 patients of Class I and Class II div 1 malocclusion randomly distributed into two groups. Group A was treated using the CIA while Group B treated with orthodontic mini- implants. Lateral cephalograms were taken pre-intrusion and post-intrusion at the end of six months.  Results:  On Comparison of Group A to Group B, radiographically, it was found that intrusion was achieved in both the Groups but Group B (1.59±0.86) shows a slightly higher amount of intrusion as compared to Group A (0.93±0.35) which was statistically significant. The unwanted side effects such as protrusion of maxillary incisors were seen in both Group A and Group B as shown by Cephalometric analysis. Group A exhibited a slightly higher protrusion (0.29±1.11) as compared to Group B (0.18±1.06), but it was statistically non-significant with P value of 0.844 Overbite reduction was seen in both the Groups but was statistically non-significant.  Conclusion: Intrusion of maxillary anterior dentition for correction of a deep bite can be better achieved with a single implant placed in between two maxillary incisors.

Keywords: CIA, Mini- implant, Intrusion, Lateral cephalogram, Protrusion.