Management of the Class III malocclusion treated with maxillary expansion, facemask therapy and corrective orthodontic. A 15-year follow-up (original) (raw)
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Treatment of a Class III malocclusion with maxillary constriction and an anterior functional shift
American Journal of Orthodontics and Dentofacial Orthopedics, 1999
The developing class III malocclusion is one of the most challenging problems for the practicing orthodontist to manage clinically. True class III malocclusion is rare in our region as compared to Class II and Class I malocclusion. With adults, orthognathic surgery and dental camouflage is the viabletreatment option. A variety of treatment alternatives exists for patients in the developing stages of a Class III malocclusion. In the past much ofthetherapy has focused on restriction ofmandibulargrowth with chin cups and functional appliances.Thisis based on the traditional thought that developingClass III malocclusions were the result ofa prognathic mandible. Recently, however, there has been a growingawareness that the majority of patients with a developing Class III skeletal pattern exhibit a maxillary deficiency with a normal or only slightly prognathic mandible. Therefore, considerable attention has been given to early treatment using maxillary protraction therapy. Using facemask therapy in conjunction with maxillary expansion has been shown in clinical reports to be a successful and predictable treatment option. Treatment should be carried out as early as possible with the aim to prevent it from becoming severe. A case treated with biphasic therapy-orthopaedic appliance followed by fixed orthodontic treatment is presented here.
Orthopedic and orthodontic interceptive treatment of a class III malocclusion. A case report
Class III malocclusion is caused by a maxillary deficiency, overgrowth of the jaw or a combination of both. The opportune treatment of a class III malocclusion may remove the option of an orthognathic surgery or in more severe cases reduce the surgery complications. Maxillary protraction and expansion are often used for orthopedic treatment and orthodontic apparatus for detailing and finishing in early stages of growth in patients. Case Report: Male patient of 9 years and 8 months of age without personal pathological or allergic data, concave profile, brachyfacial biotype, horizontal growth, skeletal class III with mandibular prognathism, anterior and posterior crossbite.
International Journal of Pharma and Bio Sciences, 2022
Orthodontists face difficulty when it comes to treating Class III malocclusion. It is best to treat it at the growing stage with dentofacial orthopedics. Maxillary protraction using the Alternate Rapid Maxillary Expansion and Contraction (Alt-RAME) technique is an effective approach for treating skeletal Class III malocclusion at an early age. A 9-year-old female patient came to the Department of Orthodontics with a complaint of backwardly placed upper teeth and un-aesthetic dental as well as facial appearance. Intraoral examination revealed an anterior cross-bite of 1 mm. Molar relation was class III on the right side and super Class I on the left side. Slight crowding in lower arch and spacing in maxillary arch due to unerupted teeth was seen. The patient was diagnosed with Class III skeletal pattern associated with maxillary retrusion, average growth pattern, Class III molar relation on right side, super Class I molar relation on left side and a protrusive lower lip. The early tr...
The long-term efficacy of rapid maxillary expansion and facemask therapy in Class III malocclusion
Australasian Orthodontic Journal
The aim of the present study was to investigate the long-term efficacy of rapid maxillary expansion (RME) and facemask (FM) therapy in the treatment of Class III malocclusions by comparing Class III subjects treated by RME/FM mechanics with untreated Class III controls at the Western Australian public dental hospital. Materials and methods: The lateral cephalograms of 42 (26 males, 16 females) Class III patients treated by RME/FM therapy were analysed and compared with a control sample comprised of 23 (14 males, 9 females) untreated Class III patients. Evaluations were carried out prior to facemask therapy and at a long-term follow-up period of approximately eight to nine years post-treatment. Statistical comparisons were performed using t-tests for unpaired data. Results: At long-term follow-up, there were no statistically significant differences between the treated and control groups except in overjet, which was greater in the treated group (p < 0.05). Conclusions: These results suggest that the short-term effects on the maxilla in RME/FM therapy are not maintained in the long term. Success in treatment is largely dependent on the patient's skeletal growth pattern.
Brazilian Dental Science
Aim: To demonstrate the main effects on maxillary and facial profile after treatment with expansion and face mask therapy in patients pattern III Class III. Material and Method: A cross-sectional study of maxillary expansion and reverse traction performed in 4 patients with maxillary deficiency, in the pre-peak pubertal growth stage and in the mixed dentition, with cephalograms before and after treatment, using angular measurements (SNA, SNENA, ANL and 1NA) and linear (S’-ENA, S’-A, 1-NA, OVERJET, S-LS and S-LI) and plot overlays. Results: Improvement in overjet was observed, going from negative to positive in all cases treated with incisor uncrossing, although it was not statistically significant. The upper and lower labial posture with respect to the base of the nose and the ment improved significantly, represented by the measurements S-LS and S-LI, with a change from the concave profile to slightly convex. Conclusion: Class III malocclusion with maxillary deficiency treated with ...
Dental Press Journal of Orthodontics, 2012
The aim of this prospective study was to assess potential changes in the cephalometric craniofacial growth pattern of 17 children presenting Angle Class III malocclusion treated with a Haas-type expander combined with a face mask. Methods: Lateral cephalometric radiographs were taken at beginning (T 1) and immediately after removal of the appliances (T 2), average of 11 months of treatment. Linear and angular measurements were used to evaluate the cranial base, dentoskeletal changes and facial growth pattern. Results: The length of the anterior cranial base experienced a reduction while the posterior cranial base assumed a more vertical position at T 1. Some maxillary movement occurred, there was no rotation of the palatal plane, there was a slight clockwise rotation of the mandible, although not significant. The ANB angle increased, thereby improving the relationship between the jaws; dentoalveolar compensation was more evident in the lower incisors. Five out of 12 cases (29.41%) showed the following changes: In one case the pattern became more horizontal and in four cases more vertical. Conclusions: It was concluded after a short-term assessment that treatment with rapid maxillary expansion (RME) associated with a face mask was effective in the correction of Class III malocclusion despite the changes in facial growth pattern observed in a few cases.
Orthodontic-Surgical Correction of a Skeletal Class III Malocclusion: Case Report
Journal of Dental Health and Oral Research, 2024
Introduction: Class III malocclusions and anterior crossbites are disturbing for patients because they are very apparent and often cause aesthetic and functional damage. Description: The clinical case describes a 19-year-old patient in good general health attended the dento-facial orthopedics service at the Rabat Hospital Center for Dental Consultation and Treatment presenting an anterior crossbite. The clinical examination and the cephalometric analysis showed that the patient had a Class III malocclusion of maxillary and mandibular origin with hyperdivergent facial type. An orthodontic-surgical treatment was well indicated for correction of the skeletal discrepancy in three phases: presurgical orthodontic preparation, orthognathic surgery and orthodontic finishing. Results: In reviewing the patient's final records, the major goals set at the beginning of treatment were successfully achieved; the facial profile and proportion were significantly improved with solid functional occlusion Conclusion: In class III malocclusion when facial aesthetics is altered, the surgical-orthodontic treatment is the most indicated for patients who do not present facial growth.