1/30. Reconstruction of an alveolar cleft for orthodontic tooth movement.Bone grafting to repair an alveolar cleft has long been an integral part of the treatment of persons with unilateral and bilateral clefts of the lip and alveolus. The presence of the cleft places a limitation on the orthodontist who would like to move teeth in the area of the cleft. Various grafting materials have been placed in alveolar clefts in an attempt to solve this problem. The case to be presented is a patient with a Class II, Division 2, malocclusion with a left unilateral alveolar cleft and a repaired cleft lip. Ten months after initiating orthodontic treatment, a free gingival graft procedure was performed because of insufficient vestibular depth and the narrow width of the keratinized attached gingiva at the left maxillary lateral and central incisor region. Two months after periodontal surgery, a mix of decalcified freeze-dried bone allograft and a granular bioactive glass graft material (1:1) were applied subperiostally on the buccal aspect of the edentulous cleft region. Six months later, the teeth adjacent to the grafted alveolar cleft were orthodontically moved into the edentulous area. The treatment results indicated that orthodontic, periodontal, and surgical interventions resulted in a successful closure of the alveolar cleft as well as improved periodontal conditions of the teeth adjacent to the cleft area. From the orthodontic point of view, tooth movement can be achieved successfully into a bone graft made of freeze-dried bone and bioactive glass.- - - - - - - - - - ranking = 1keywords = alveolar (Clic here for more details about this article) |
2/30. 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 = 94.300455476392keywords = dentoalveolar, alveolar (Clic here for more details about this article) |
3/30. Anterior mandibular dentoalveolar advancement utilizing lyophilized bone.patients with low angle Class II malocclusions complicated by strong nasal and chin profiles, interarch width discrepancies, and an exaggerated mandibular curve of Spee present several diagnostic and treatment problems. Various treatment possibilities are discussed and anterior mandibular dentoalveolar advancement is suggested as a treatment for these patients. Lyophilized, homologous bone is recommended for placement into the defects created by segmental advancement to avoid root resorption and ankylosis caused by autologous bone grafts. Finally, a modified incision is presented that facilitates watertight closure of the surgical wound.- - - - - - - - - - ranking = 471.50227738196keywords = dentoalveolar, alveolar (Clic here for more details about this article) |
4/30. Three cases of anterior maxillary osteotomy under orotracheal intubation.Anterior maxillary osteotomy is frequently applied to skeletal Class II cases with maxillary protrusion. In addition to the anteroposterior problem, these cases are often accompanied with a long midfacial appearance and display of incisors and gingiva during smiling. In the application of anterior maxillary osteotomy to such patients, it is necessary to move the anterior maxillary segments upward as well as backward. Since the upward movement occasionally interferes with the intranasal endotracheal tube, orotracheal intubation is recommended for the operation. Recently, the use of a resin replica of the mandibular dental arch was introduced to place the anterior maxillary segment correctly in the planned position and to obtain the correct occlusion. This article reports on 3 maxillary protrusive skeletal Class II patients with deep overbites and vertical esthetic problems treated by this method. The treatment results show that all 3 patients exhibited large upward and backward movements of the anterior maxillary segments and desirable facial profiles, with a reduction of the deep overbites after the treatment. This case report demonstrates that the anterior maxillary osteotomy under orotracheal intubation with the use of a resin replica is a useful method to treat maxillary protrusive skeletal Class II patients with a large alveolar height.- - - - - - - - - - ranking = 0.11111111111111keywords = alveolar (Clic here for more details about this article) |
5/30. A combination of orthodontic, periodontal, and prosthodontic treatment in a case of advanced malocclusion.Some of the most difficult problems to resolve in daily clinical practice are those where there is interaction of various pathogenic factors, with consequent complication of the therapeutic solutions. Combined treatments based on sound diagnosis of the case and appropriate decision making to organize the therapeutic procedures in sequence are the best way of dealing with such situations. This article describes the case of a woman who was pregnant at the beginning of the treatment and had active periodontitis and angle Class II molar malocclusion because of loss of maxillary and mandibular teeth. She had had maxillofacial surgery years before with average results, had lost teeth because of caries, and was seeking a solution to her problems that would be both esthetically pleasing and functional. A system that combined odontologic decision making with phased periodontal, orthodontic, and prosthodontic treatment was adopted, leading to a stable, esthetic, and functional solution that fulfilled the patient's requirements.- - - - - - - - - - ranking = 4.5382173229288keywords = periodontitis (Clic here for more details about this article) |
6/30. Interdisciplinary treatment including forced extrusion and reintrusion of a traumatized mandibular incisor for a patient with Class II Division 1 skeletal open bite.A woman with Class II Division 1 long-face syndrome characteristics had a history of facial trauma, dentoalveolar fracture of her mandibular anterior teeth, and temporomandibular joint pain. The pretreatment apical radiograph showed a large area of external root resorption of the mesial surface of the mandibular left central incisor. To arrest the external root resorption, the mandibular left central incisor was extruded. During extrusion, sequential apical radiographs were taken. As the tooth moved away from the site of osteoclastic activity, resorption ceased, and repair took place on the root surface. At this time, the mandibular left central incisor was intruded, the mesial defect self-repaired, the tooth remained vital, and the periodontial ligament was intact. The biologic bases for this cessation of resorption and the repair of the tooth's surface are presented.- - - - - - - - - - ranking = 94.300455476392keywords = dentoalveolar, alveolar (Clic here for more details about this article) |
7/30. Treatment of Class II open bite in the mixed dentition with a removable functional appliance and headgear.early diagnosis of patients exhibiting open bites that are complicated by skeletal Class II and vertical growth problems can facilitate subsequent treatment. Eight patients with Class II skeletal open bite were treated with the high-pull activator appliance and compared to reasonably matched controls to determine the effects of the appliance. The high-pull activator was found to reduce forward growth of the maxilla and increase mandibular alveolar height, transforming the Class II molar relationship into a Class I molar relationship. The overjet and open bite were decreased, and, in addition, the appliance reduced the amount of forward and downward movement of the maxillary molars, providing vertical control of the maxilla during Class II orthopedic correction. These results demonstrated that open bite complicated by a Class II vertical growth pattern can be treated during the mixed dentition with favorable results by a combination of a removable functional appliance and high-pull headgear.- - - - - - - - - - ranking = 0.11111111111111keywords = alveolar (Clic here for more details about this article) |
8/30. Nonextraction treatment with microscrew implants.The maxillary and mandibular posterior teeth were retracted with microscrew implants (1.2 mm in diameter and six to 10 mm long) that were placed into the alveolar bone and used as anchorage. The retraction proceeded without adverse reciprocal effects on the reactive part of the conventional mechanics, such as premolar extrusion and flaring of the incisors. The anterior crowding was resolved without any deleterious effect on the facial profile. En masse movement of the posterior teeth and the whole dentition after anterior tooth alignment can reducethe treatment period and maximize the efficiency of the treatment. The microscrew implants were maintained firmly throughout the treatment and were able to provide an anchorage for retraction of whole dentitions. The efficacy and potency of the microscrew implants aid mechanics in the nonextraction treatment of both labial and lingual treatments.- - - - - - - - - - ranking = 0.11111111111111keywords = alveolar (Clic here for more details about this article) |
9/30. Treatment of an ankylosed central incisor by single tooth dento-osseous osteotomy and a simple distraction device.When teeth are replanted after being avulsed, the repair process sometimes results in ankylosis. In a growing child, the ankylosed tooth fails to move along with the remaining alveolar process during vertical growth, resulting in a tooth that gradually appears more and more impacted and requires several reconstructive procedures to correct. Ankylosed teeth can, however, serve as anchorage for orthodontic correction of a malocclusion and as a point of force application for a dentoalveolar segment during alveolar distraction osteogenesis. This case report describes the treatment of a 13-year-old girl whose maxillary left central incisor had been avulsed and replanted 5 years earlier. The tooth had become ankylosed, and it was used to provide "free anchorage" during distalization of the maxillary dentition. The underdeveloped alveolar process adjacent to the ankylosed tooth was reconstructed by dento-osseous segment distraction osteogenesis, by using the ankylosed tooth as the point of force application.- - - - - - - - - - ranking = 94.633788809725keywords = dentoalveolar, alveolar (Clic here for more details about this article) |
10/30. Differential diagnosis of skeletal open bite based on sagittal components of the face.AIMS: This study examined the morphology of skeletal open bite with respect to the sagittal components of the face. methods: The material consisted of cephalometric and hand-wrist films of 49 girls and 22 boys with skeletal open bite. The samples were grouped into Class I, II, and III facial types on the basis of ANB angle. In addition to conventional dentofacial variables, nasopharyngeal airway area was also measured on lateral headfilms. All measurements were examined by analysis of variance and Duncan test. Subsequently the factors leading to open bite were evaluated using multiple-regression analysis. RESULTS: Dentofacial morphology differed in the sagittal components of skeletal open bite, and the differences were most obvious between the Class II and Class III open bite groups. Posterior maxillary dentoalveolar height and mandibular incisor inclination were important factors in the development of open bite in the skeletal Class I and Class II open bite groups, while in the skeletal Class III open bite group, the nasopharyngeal airway and the gonial angle were involved. CONCLUSION: Sagittal components of skeletal open bite should be considered in the differential diagnosis and treatment planning of such cases.- - - - - - - - - - ranking = 94.300455476392keywords = dentoalveolar, alveolar (Clic here for more details about this article) |
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