1/104. Surgical cephalometric prediction tracing for the alteration of the occlusal plane by means of rotation of the maxillomandibular complex.The surgical cephalometric prediction tracing involving the alteration of the occlusal plane differs from the conventional surgical prediction tracing. When conventional surgical prediction is developed, the final occlusal plane is dictated by the occlusal plane of the mandible, with or without autorotation. The mandible (and therefore the mandibular occlusal plane) will rotate around a point at or just posterior to the condyle. This principle is not adhered to in treatment planning requiring rotation of the maxillomandibular complex and consequent alteration of the occlusal plane. The aim of this paper is to present a method for developing a surgical cephalometric prediction tracing involving rotation of the maxillomandibular complex.- - - - - - - - - - ranking = 1keywords = mandible (Clic here for more details about this article) |
2/104. Class II malocclusion correction: an American board of orthodontics case.A Class II open bite malocclusion with a narrowed maxilla, an increased lower anterior facial height, and a tooth size discrepancy are presented. The malocclusion was treated nonextraction in 2 phases. The mixed dentition phase of treatment was maxillary molar uprighting followed by a bonded rapid palatal expander. The vertical dimension was managed with a vertical pull chincup. The full appliance phase included buildups of the maxillary lateral incisors and mechanics to control lower incisor position.- - - - - - - - - - ranking = 0.0065352258476025keywords = lower (Clic here for more details about this article) |
3/104. Case report of malocclusion with abnormal head posture and TMJ symptoms.Abnormal cervical muscle function can cause abnormal head posture, adversely affecting the development and morphology of the cervical spine and maxillofacial skeleton, which in turn leads to facial asymmetry and occlusal abnormality. There can be morphologic abnormalities of the mandibular fossa, condyle, ramus, and disk accompanying the imbalance of the cervical and masticatory muscles activities. Two normally growing Japanese female patients with Class II Division 1 malocclusion presented with TMJ symptoms and poor head posture as a result of abnormal sternocleidomastoid and trapezius cervical muscle activities. One patient underwent tenotomy of the two heads of the sternocleidomastoid muscle and the other patient did not. In addition to orthodontics, the 2 patients received physiotherapy of the cervical muscles during treatment. Both were treated with a functional appliance as a first step, followed by full multi-bracketed treatment to establish a stable form of occlusion and to improve facial esthetics with no head gear. This interdisciplinary treatment approach resulted in normalization of stomatognathic function, elimination of TMJ symptoms, and improvement of facial esthetics. In the growing patients, the significant response of the fossa, condyle, and ramus on the affected side during and after occlusal correction contributed to the improvement of cervical muscle activity. Based on the result, early occlusal improvement, combined with orthopedic surgery of the neck muscles or physiotherapy to achieve muscular balance of the neck and masticatory muscles, was found to be effective. Two patients illustrate the potential for promoting symmetric formation of the TMJ structures and normal jaw function, with favorable effects on posttreatment growth of the entire maxillofacial skeleton.- - - - - - - - - - ranking = 0.020734183609784keywords = jaw (Clic here for more details about this article) |
4/104. Idiopathic condylar resorption: diagnosis, treatment protocol, and outcomes.Idiopathic condylar resorption is a poorly understood progressive disease that affects the TMJ and that can result in malocclusion, facial disfigurement, TMJ dysfunction, and pain. This article presents the diagnostic criteria for idiopathic condylar resorption and a new treatment protocol for management of this pathologic condition. Idiopathic condylar resorption most often occurs in teenage girls but can occur at any age, although rarely over the age of 40 years. These patients have a common facial morphology including: (1) high occlusal and mandibular plane angles, (2) progressively retruding mandible, and (3) Class II occlusion with or without open bite. Imaging usually demonstrates small resorbing condyles and TMJ articular disk dislocations. A specific treatment protocol has been developed to treat this condition that includes: (1) removal of hyperplastic synovial and bilaminar tissue; (2) disk repositioning and ligament repair; and (3) indicated orthognathic surgery to correct the functional and esthetic facial deformity. patients with this condition respond well to the treatment protocol presented herein with elimination of the disease process. Two cases are presented to demonstrate this treatment protocol and outcomes that can be achieved. Idiopathic condylar resorption is a progressive disease that can be eliminated with the appropriate treatment protocol.- - - - - - - - - - ranking = 0.5keywords = mandible (Clic here for more details about this article) |
5/104. Condylar resorption 2 years following active orthodontic treatment: a case report.We recently treated a patient with degenerative disease of the temporomandibular joint. A healthy, 12-year-old female with bilateral high maxillary canines presented for orthodontic treatment. Two years after active orthodontic treatment, at age 17, symptoms in her temporomandibular joint manifested and progressed. By the time she revisited our hospital at age 21, the patient had developed an anterior open bite with a long, slender facial appearance. Cephalometric analysis showed shortening of the ramus and backward and downward rotation of the mandible. Imaging studies revealed severe deformity and resorption of the bilateral condyles. Her occlusal and morphologic changes seemed to be caused by degenerative disease of the temporomandibular joint.- - - - - - - - - - ranking = 0.5keywords = mandible (Clic here for more details about this article) |
6/104. Extraction of maxillary first bicuspids and mandibular lateral incisors, combined with orthognathic surgery to correct a severe class II skeletal malocclusion.This is a case report of a 21-year-old female with a Class II Division 1 malocclusion. The maxillary arch was constricted with an associated anterior open bite. The lower facial height was excessive, and the mandibular plane angle was high. The treatment options were limited due to a previously extracted mandibular right lateral incisor. The patient was successfully treated by a surgical rapid palatal expansion procedure, extraction of the mandibular left lateral incisor, extraction of the maxillary first premolars at the time of a 3-piece Lefort 1 maxillary osteotomy procedure, and a bilateral sagittal split osteotomy advancement procedure.- - - - - - - - - - ranking = 0.0032676129238012keywords = lower (Clic here for more details about this article) |
7/104. Treatment of a Class II Division 1 malocclusion with a severe unilateral lingual crossbite with combined orthodontic/orthognathic surgery.A 24-year-old woman had a Class II Division 1 malocclusion with a severe unilateral crossbite. The crossbite was due partially to the maxilla being much wider than the mandible, allowing the mandibular left canine and first and second premolars to overerupt, impinging on the palatal tissue in habitual occlusion. The maxillary left segment from the lateral incisor to the first molar also overerupted producing 2 planes of occlusion. The malocclusion was treated successfully with comprehensive orthodontics, combined with a 2 piece Lefort I osteotomy procedure, a 3 tooth mandibular segmental osteotomy procedure, and a bilateral sagittal split osteotomy procedure.- - - - - - - - - - ranking = 0.5keywords = mandible (Clic here for more details about this article) |
8/104. Orthodontic tooth movement after extraction of previously autotransplanted maxillary canines and ridge augmentation.A case report is detailed in which autotransplanted maxillary canines were removed and the spaces closed. Substantial surrounding bone loss was associated with the upper right canine, and a bone graft was needed to reestablish normal dentoalveolar ridge morphology. Bone was taken from the maxillary tuberosity and placed in the canine extraction site, fixed with a bone screw, and covered with GoreTex. Seven months after placement of the bone graft, the GoreTex and stabilizing screw were removed to allow for consolidation of the bone. The upper left canine and lower second premolars were extracted, and fixed appliances were placed in both arches to align the teeth and close the spaces. Protraction of the upper right first premolar and retraction of the lateral incisor into the graft site were kept slow and constant with continued periodontal assessment. During the space closure, there was some concern that the bone in the graft site might resorb, leaving the teeth with compromised periodontal support. However, no significant periodontal attachment loss occurred despite ongoing concern about the amount of keratinized tissue. Perhaps the relatively slow rate of tooth movement provided for bone to be maintained and recreated ahead of the tooth. Almost complete closure of the upper canine extraction spaces was achieved. The upper premolars were substituted for the maxillary canines, and unfavorable prosthetic options were thus avoided. The lower arch was aligned, and the extraction spaces completely closed.- - - - - - - - - - ranking = 0.0065352258476025keywords = lower (Clic here for more details about this article) |
9/104. The integration of functional and fixed appliance treatment.This article describes a functional appliance system to correct Class II problems, which is clipped on to bands, cemented to the teeth. This appliance has several advantages, as the patient cannot remove it. It acts on the teeth and jaws for 24 hours each day, patient co-operation is not a problem, and as a result the treatment time is short. Any fixed appliance system can be added while the functional phase is being completed so allowing full integration of the two treatment systems.- - - - - - - - - - ranking = 0.020734183609784keywords = jaw (Clic here for more details about this article) |
10/104. Early treatment of angle Class II, division 2 in combination with functional therapy of TMJ fracture.Children who have sustained condylar fractures are treated with functional appliances because surgical repositioning of the condyle is more resource-intensive without producing better results. In cases with additional malocclusions it is practicable to combine the functional therapy of the fracture with skeletal Class II therapy. A 10-year-old boy suffering from a left condylar fracture and showing Class II, Division 2 malocclusion was treated with a skeletal functional appliance in combination with a utility arch for uprighting of the incisors. A modified transpalatal bar was then used to retain the incisor position. The remodeling process of the mandibular condyle following its fracture with dislocation signifies a high adaptability of the affected tissues. This reaction can be used simultaneously for effective sagittal repositioning of the mandible in certain cases of Class II malocclusion.- - - - - - - - - - ranking = 0.5keywords = mandible (Clic here for more details about this article) |
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