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JIOS Clinical Innovation A New Method to Retain the Posterior Bite Blocks for Anterior Crossbite Correction 10.5005/jp-journals-10021-1233 A New Method to retain the Posterior Bite Blocks for Anterior Crossbite Correction 1 Nabeel Ahmad, 2Akram Ansari, 3Anil Gera, 4Gurmeet Kaur ABSTRACT Anterior dental crossbite is a common problem in which maxillary anterior teeth are locked behind the mandibular anteriors. Orthodontic treatment of anterior teeth crossbite need unlocking of upper anterior teeth. Several methods are used to raise the bite for anterior teeth crossbite correction. Posterior acrylic bite blocks are commonly used to raise the bite. Here, in this article, a new method is described to retain the posterior bite block for anterior crossbite correction. Keywords: Anterior dental crossbite, Orthodontic treatment, Posterior acrylic bite blocks. How to cite this article: Ahmad N, Ansari A, Gera A, Kaur G. A New Method to retain the Posterior Bite Blocks for Anterior Crossbite Correction. J Ind Orthod Soc 2014;48(2):139-140. Source of support: Nil Fig. 1: Sixteen gauge needle Conflict of interest: None Received on: 5/1/13 Accepted after Revision: 3/6/13 Introduction Traditionally, acrylic bite blocks on the occlusal surface of teeth are used to raise the bite for correction of anterior crossbite.1,2 Later on, these were cemented with glass ionomer cement (GIC). Most of the time patient reports before the prescribed appointment with loose biteblocks and debonded brackets, thus delaying the treatment. Another method used most frequently in the clinics is using GIC blocks on molars, which get chipped off causing a failure to achieve desired results. Technique Fig. 2: Marking the tube length A new technique of fabricating an acrylic bite block with stainless steel tubes (16-gauge needle, Fig. 1) incorporated into the blocks is presented. The following is a simple method of fabrication of bite blocks: 1,2 Senior Lecturer, 3Professor and Head, 4Professor 1-3 Department of Orthodontics, Teerthanker Mahaveer Dental College and Research Centre, Moradabad, Uttar Pradesh, India 4 Department of Orthodontics, Saraswati Dental College Lucknow, Uttar Pradesh, India Corresponding Author: Nabeel Ahmad, Senior Lecturer Department of Orthodontics, Teerthanker Mahaveer Dental College and Research Centre, Moradabad, Uttar Pradesh, India e-mail: [email protected] The Journal of Indian Orthodontic Society, April-June 2014;48(2):139-140 Fig. 3: Bite block with ligature wire 139 Nabeel Ahmad et al Fig. 4: Intraoral frontal view Fig. 5: Intraoral occlusal view Fig. 6: Intraoral right lateral view Fig. 7: Intraoral left lateral view 1. Make an impression of the mandibular arch and prepare the working cast. Apply separating medium on it. Sprin kle self-cure acrylic powder and liquid on it and make a bite block (half of the desired thickness). 2. Now place the measured length (Fig. 2) of the hollow stainless steel tubes over the bite block. • Above the contact area of second premolar and first molar. • Above the contact area of first and second molars. 3. Continue the acrylization of the bite block to desired thickness taking care that acrylic does not flow inside the tube. 4. Remove the bite blocks from the working cast. After finishing and polishing the appliance cement it with GIC (Fig. 3). 5. Now pass the twisted ligature wires (double thickness of 0.010” stainless steel ligature wire or brass wire) through the hollow tubes. Pass the lingual ends of ligature wires 140 below the contact areas and tie it with the buccal ends of the ligature wires (Figs 4 to 7). Conclusion This technique has been found to be reliable and convenient, especially since it avoids the loosening of the bite block before patient’s visit and keeps the bite open as desired. Moreover, the bite block can be given unilaterally without any chance of swallowing it, because it is tied with the help of ligature/brass wire. Patient compliance with the appliance is also found to be excellent. References 1. Vadiakas G, Viazis AD. Anterior crossbite correction in the early deciduous dentition. Am J Orthod Dentofacial Orthop 1992;102:160-162. 2. Kiyak HA. Patients’ and parents’ expectations from early treatment. Am J Orthod Dentofacial Orthop 2006;129:S50-54.