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At least 73 records · Page 4Linked to original sources

Treatment of a crowded Class II malocclusion with significant maxillary incisor protrusion.

A case report of a 10-year-old girl with a skeletal and dental Class II, Division 1 malocclusion is presented. There was marked arch length deficiency in the mandibular arch and significant maxillary incisor protrusion. The patient was treated with maxillary premolar extractions and early maxillary treatment for incisor retraction. The treatment was completed nonsurgically with full treatment later and a single mandibular incisor extraction. The Class II malocclusion and crowding were resolved with Class II molar and Class I canine relationships and a positive profile change. [This case was presented to the American Board of Orthodontics in partial fulfillment of the requirements for the certification process conducted by the Board.]

Bicuspid↗

The use of implants for orthodontic correction of an open bite.

This case illustrates the integration of maxillofacial surgery, orthodontics, prosthodontics and periodontics in the treatment of an adult male. A traumatic injury to the lower jaw was the stimulus for the patient to seek orthodontic correction of a severe malocclusion including crossbites and an anterior open bite. The loss of a large portion of the anterior alveolar process of the lower jaw including six teeth was corrected with an implant bearing prosthesis which was subsequently used as anchorage to correct the malocclusion. Through the combined efforts of the above disciplines, properly orchestrated, this patient was treated in an effective and successful manner.

Adult↗

The inclined biteplane--a useful tool.

A technique is described to help maintain overjet and overbite reduction achieved with a functional appliances, while waiting to proceed with definitive treatment or for use after a definitive course of fixed appliance therapy to help maintain the achieved result.

Child↗

Early protrusion reduction--two phase malocclusion correction: a case report.

What is early treatment? Does early treatment imply early correction? There is confusion as to what these terms mean in clinical orthodontics today. This case report of two phase malocclusion correction addresses the issue of early treatment verses early correction. It attempts to add some perspective to the two terms and give the clinical orthodontist some sound guidelines as to whether to initiate two "phases" of treatment.

Bicuspid↗

An American Board of Orthodontics case report: the nonsurgical orthodontic correction of a Class III malocclusion.

This is a case report of a patient with a skeletal Class III malocclusion and maxillary arch length deficiency. The patient was treated without extraction or surgery by increasing the maxillary arch length. Protraction of the maxillary complex and A point was the result. Favorable growth of both the maxilla and the mandible resulted in a functional Class I occlusion and an improved skeletal relationship. [This case report was presented to the American Board of Orthodontics in partial fulfillment of the requirements for the certification process conducted by the Board.]

Cephalometry↗

Nonsurgical treatment of a skeletal vertical discrepancy with a significant open bite.

A case report of a patient who exhibited with a skeletal Class II, dental Class I malocclusion with maxillary right first molar to maxillary left first molar open bite. A hyperdivergent cranial base/mandibular plane angle is presented. Maxillary-mandibular arch form and arch width discrepancies, a low labial frenum, multiple diastemas, and mandibular dental protrusion were present. A history of thumb sucking was evident. Active tongue thrusting and inadequate tongue posture at the time of treatment were documented. The patient was treated without extraction with an 0.022-inch edgewise appliance. A modified tongue crib with a palatal button was used until stable bite closure was achieved. Ideal overbite and overjet relationships were established. A Class 1 molar and canine occlusion was obtained. The transverse discrepancy was solved, and excellent dentofacial esthetics were achieved. Posttreatment records for 38 months document the stability of the treatment result. [This case report was presented to the American Board of Orthodontics in partial fulfillment of the requirements of the certification process conducted by the Board.

Cephalometry↗

Occlusal and functional evaluations in adults: a case report.

The findings on an adult patient with mandibular asymmetry and temporomandibular dysfunction are presented. The patient had four first premolars extracted earlier, followed by a short treatment attempt. Control of tongue function and jaw posture before, during, and after active treatment helped achieve a functional occlusion and a relief of the symptoms of the temporomandibular dysfunction. Specific diagnostic (assessment of occlusion and jaw movements) as well as therapeutic means (lower removable appliance and crown reshaping) are described.

Adult↗

Headgear versus function regulator in the early treatment of Class II, division 1 malocclusion: a randomized clinical trial.

A prospective randomized clinical trial was conducted to evaluate the early treatment of Class II, Division 1 malocclusion in prepubertal children. Facial and occlusal changes after treatment with either a headgear or a Fränkel function regulator are reported. Molar and canine relationships, overjet, intermolar and intercanine distances were measured from casts taken every 2 months, and mounted on a SAM II articulator. Cephalometric radiographs were taken annually. The results indicate that both the headgear and function regulator were effective in correcting the malocclusion. A common mode of action of these appliances is the possibility to generate differential growth between the jaws. The extent and nature of this effect, as well as other skeletal and occlusal responses differ. Treatment in late childhood was as effective as that in midchildhood. This finding suggests that timing of treatment in developing malocclusions may be optimal in the late mixed dentition, thus avoiding a retention phase before a later stage of orthodontic treatment with fixed appliances. However, a number of conditions may dictate an earlier intervention in the individual patient.

Adolescent↗

Multilingual bracket treatment combined with orthognathic surgery in a skeletal class III patient with facial asymmetry.

A case report is presented on a female adult with a Class III mandibular protrusion. Resolution of her dentoskeletal problem required a combination of comprehensive multibonded orthodontic mechanotherapy and orthognathic surgery. The patient preferred a multilingual bracket appliance because of esthetics. Both surgical and orthodontic treatment were quite successful in the correction of the facial profile and occlusion. Both psychological and esthetic satisfaction were achieved.

Adult↗

Nonsurgical correction of a class II malocclusion with a vertical growth tendency.

Malocclusion, with a superimposed vertical growth tendency, is often difficult to treat without a combined surgical orthodontic approach. Certain situations, however, may preclude surgery as a treatment option. The following case report demonstrates the use of orthodontic mechanotherapy alone in successfully treating a patient that exhibited a Class II Division I malocclusion with a high mandibular plane angle and vertical growth tendency.

Adolescent↗

A retrospective study of Angle Class I malocclusions treated orthodontically without extractions using two palatal expansion methods.

The correction and relapse of mandibular anterior crowding was evaluated in a population of 58 patients with Angle Class I malocclusion who were treated orthodontically without extraction of permanent teeth. The subjects were retrospectively evaluated from records taken before treatment, posttreatment, and postretention. The postretention period averaged 8 years (minimum of 4 and maximum of 20 years). All cases in Groups A and B were given orthopedic treatment to develop the maxillary apical base in the transverse and anteroposterior planes. Group A was treated with expansion of the inner bow of the face bow appliance (Kloehn), and Group B was treated with the Haas palatal expansion appliance. Both groups were then treated orthodontically with tandem mechanics. The response variables measured were: overbite, overjet, intercanine distance, intermolar distance, and irregularity index. Study groups A and B were not significantly different for subject age, retention, or postretention time. Moreover, the groups did not show significant difference for any of the response variables before treatment. However, there was a statistically significant difference in the treatment times (P =.0133). A statistically significant treatment effect was observed for most response variables in the groups. Overbite, overjet, and irregularity index were significantly reduced, intermolar distance was significantly increased, and intercanine distance showed no significant change in Groups A and B. In the postretention period, there was a tendency for variables to change slightly toward their before treatment values but no compromise of orthodontic correction was noted. The irregularity index in Group A was corrected from 4.8 to 1.1 mm and remained at 1.1 mm in the postretention period. The irregularity index in Group B was corrected from 5.1 to 1.2 mm (P =.0001) and changed slightly from 1. 2 to 1.7 mm (P =.0540) in the postretention period. We concluded that mandibular incisors tended to become more crowded postretention. However, in contrast to previous reports, we calculate this relapse to be small. Neither before treatment nor posttreatment variables were predictive of relapse.

Adolescent↗

Skeletal anchorage system for open-bite correction.

A skeletal anchorage system was developed for tooth movements. It consists of a titanium miniplate that is temporarily implanted in the maxilla or the mandible as an immobile anchorage. In this article, we introduce the skeletal anchorage system to intrude the lower molars in open-bite malocclusion and evaluate the results of treatment in two severe open-bite cases that underwent orthodontic treatment with the system. Titanium miniplates were fixed at the buccal cortical bone around the apical regions of the lower first and second molars on both the right and left sides. Elastic threads were used as a source of orthodontic force to reduce excessive molar height. The lower molars were intruded about 3 to 5 mm, and open-bite was significantly improved with little if any extrusion of the lower incisors. No serious side-effects were observed during the orthodontic treatment. The system was also very effective for controlling the cant and level of the occlusal plane during orthodontic open-bite correction.

Adolescent↗

Long-term outcome in a patient with Class I malocclusion with severe crowding treated without extractions.

The treatment of a patient with a Class I malocclusion with significant skeletal transverse maxillary discrepancy and severe crowding is presented. The maxilla was narrow compared with the mandible, and the posterior teeth were compensated, with the maxillary teeth inclined buccally and the mandibular teeth inclined lingually. Treatment included rapid palatal expansion to correct the transverse maxillary deficiency and to gain arch length. Long-term follow-up (20 years) with a stable result is reported.

Cephalometry↗