Devasya Ashwin, K Ramagoni Naveen, Taranath Mahantesh, Ev Prasad Kamavaram, Sarpangala Mythri
Senior Lecturer, Department of Pedodontics and Preventive Dentistry, Kannur Dental College, Kannur, Kerala, India.
Professor and Head, Department of Pedodontics, Navodaya Dental College, Raichur Karnataka, India.
Int J Clin Pediatr Dent. 2017 Oct-Dec;10(4):399-403. doi: 10.5005/jp-journals-10005-1473. Epub 2017 Feb 27.
Anterior crossbite is one of the most common forms of malocclusion in sagittal relationship of maxilla and mandible. If not corrected at the earliest, it will cause restriction of normal growth and development of both the jaws. The incidence of anterior crossbite is 4 to 5% in primary dentition. Self-correction may occur at the transient dentition or permanent dentition stage, but treating it should be the first priority. Using either removable or fixed appliances is recommended for the correction, but it depends on the patient cooperation, treatment duration, and parent approval. In this case report, we have used planas direct tracks (PDTs) which helps the forward development of mandible and corrects the malocclusion. With two modifications to PDTs, one is using acrylic instead of composite. It is advantageous to both clinicians and parents by correcting the crossbite efficiently in short duration while taking less chair-side time for fabrication and being economical. Devasya A, Ramagoni NK, Taranath M, Prasad KEV, Sarpangala M. Acrylic Planas Direct Tracks for Anterior Crossbite Correction in Primary Dentition. Int J Clin Pediatr Dent 2017;10(4):399-403.
前牙反颌是上颌与下颌矢状关系中最常见的错颌畸形形式之一。如果不及早矫正,将会限制上下颌的正常生长发育。乳牙列期前牙反颌的发病率为4%至5%。在混合牙列期或恒牙列期可能会出现自行矫正的情况,但仍应将治疗作为首要任务。建议使用可摘矫治器或固定矫治器进行矫正,但这取决于患者的配合程度、治疗时长以及家长的同意。在本病例报告中,我们使用了普拉纳斯直接轨道(PDT),它有助于下颌向前发育并矫正错颌畸形。对PDT进行了两项改进,一是使用丙烯酸树脂而非复合材料。这对临床医生和家长都有利,因为它能在短时间内有效地矫正反颌,同时制作所需的椅旁时间更少且经济实惠。德瓦西亚·A、拉马戈尼·NK、塔拉纳特·M、普拉萨德·KEV、萨尔潘加拉·M。用于乳牙列期前牙反颌矫正的丙烯酸普拉纳斯直接轨道。《国际临床儿科牙科学杂志》2017年;10(4):399 - 403。