Fixed appliance and extraction approach to Class III malocclusion

2006 ◽  
Vol 51 (6) ◽  
pp. 361-362
2019 ◽  
Vol 42 (2) ◽  
pp. 193-199 ◽  
Author(s):  
Sang-Hoon Lee ◽  
Sang-Duck Koh ◽  
Dong-Hwa Chung ◽  
Jin-Woo Lee ◽  
Sang-Min Lee

Summary Objectives The purpose of this study was to compare the results of skeletal anchorage (SAMP) and tooth- borne (TBMP) maxillary protraction followed by fixed appliance in growing skeletal Class III patients. Materials and methods Patients treated with maxillary protraction were selected and classified into two groups (SAMP: n = 19, mean age = 11.19 years; TBMP: n = 27, mean age = 11.21 years). Lateral cephalograms taken before treatment (T0), after the maxillary protraction (T1), and after the fixed appliance treatment (T2) were analysed and all variables were statistically tested to find difference between the two groups. Results Compared to the TBMP, the SAMP showed significant forward growth of maxilla (Co-A point and SN-Orbitale) and improvement in intermaxillary relationship (ANB, AB to mandible plane, and APDI) after the overall treatment (T0–T2), with no significant sagittal changes in maxilla or mandible throughout the fixed appliance treatment (T1–T2). Limitations In maxillary protraction, effects of skeletal anchorage were retrospectively compared with those of dental anchorage, not with Class I or III control. Conclusions and implications After maxillary protraction, skeletal and tooth-borne anchorage did not cause significant differences in the residual growth of maxilla throughout the phase II treatment. Orthopaedic effects with skeletal anchorage showed appropriate stability in maxilla and intermaxillary relationship even after fixed appliance treatment.


2013 ◽  
Vol 20 (2) ◽  
pp. 140
Author(s):  
Sri Hartati ◽  
Heryumani JCP ◽  
Kuswahyuning Kuswahyuning

Maloklusi kelas III skeletal pada umumnya memiliki hubungan rahang yang prognatik, yaitu mandibula terletak lebih maju dari maksila. Perawatan kamuflase non pembedahan pada pasien dewasa dengan maloklusi kelas III memerlukan pencabutan dua gigi premolar mandibula atau empat gigi premolar untuk memberikan ruang retraksi  gigi incisivus mandibula. Prinsip perawatan teknik Begg adalah mekanisme gaya differensial dengan menggunakan gaya yang ringan dan kontinyu. Penggunaan   elastik intermaksiler kelas III menyebabkan ekstrusi gigi molar atas, retrusi gigi insisivus bawah, rotasi mandibula searah jarum jam dan perubahan posisi kondilus. Penelitian ini bertujuan untuk mengetahui perubahan linier dan anguler posisi mandibula pada perawatan kamuflase  maloklusi kelas III skeletal setelah dilakukan perawatan ortodontik dengan teknik Begg. Penelitian dilakukan pada 20 pasang sefalogram lateral dari subjek laki-laki dan perempuan usia 18-25 tahun yang memenuhi kriteria penelitian. Seluruh subjek yang dirawat dengan teknik Begg disertai pencabutan dua gigi premolar pertama bawah. Perubahan posisi mandibula ditentukan  dengan perubahan   titik Pg dan Pg. terhadap sumbu X dan sumbu Y sedangkan perubahan anguler dengan melihat perubahan sudut Y-axis. Data yang diperoleh dianalisisi dengan paired t test. Hasil penelitian perubahan posisi mandibula setelah perawatan ortodontik kamuflase  dengan alat cekat teknik Begg menunjukkan perubahan  yang bermakna (p<0,05).  Titik  Pg mengalami pergeseran ke arah posterior  dan inferior dan sudut Y-axis  mengalami peningkatan berarti terjadi rotasi searah jarum jam.Skeletal Class III malocclusion generally has prognatic jaw relationship. The mandibular is more forward than the maxilla. Camouflage non-surgical treatment in adult patients with Class III malocclusion required extraction of two mandibular premolars or four premolar teeth to give a space of mandibular incisors teeth retraction. The Begg technique treatment principle is the mechanism of differential force using light and continuous force. The use of inter-maxillary elastic Class III causes the extrusion of upper molars, retrusion of lower incisors, clockwise rotation of the mandible and changing of condyle position. This research aims to determine the linear changing and angular position of the mandible on the camouflage treatment of skeletal Class III malocclusion after orthodontic treatment with Begg technique. The research was conducted on 20 pairs of lateral cephalogram of men and women aged 18-25 years who met the research criteria. All subjects were treated with Begg technique with extraction of two lower first premolars. The changing of mandibular position is determined by changing the point Pg and Pg. to X axis and Y axis, while the angular changing is determined by looking at the changing of Y-axis. The obtained data were analysed with paired t test analysis. The results show that there are significant changes in mandibular position after camouflage orthodontic treatment with fixed appliance of Begg technique (p<0,05). Pg point is shifted towards the posterior and inferior, and Y-axis angle increases. It means that the clockwise rotation has happened.


1980 ◽  
Vol 7 (2) ◽  
pp. 97-102 ◽  
Author(s):  
William J. Clark

A removable/fixed appliance technique is described for treatment of Class III malocclusion by inter-maxillary traction. A variation is described for correction of lateral crossbite.


2009 ◽  
Vol 79 (5) ◽  
pp. 828-834 ◽  
Author(s):  
Tiziano Baccetti ◽  
Diego Rey ◽  
Giovanni Oberti ◽  
Franka Stahl ◽  
James A. McNamara

Abstract Objective: To evaluate the stability of the outcomes of mandibular cervical headgear (MCH) and fixed appliance–treated Class III patients at a long-term posttreatment (5 years) observation, compared with well-matched untreated Class III controls, following a previous report on the short-term outcomes of this protocol. Materials and Methods: The treated group consisted of 20 patients with dentoskeletal Class III malocclusions treated with a two-phase protocol consisting of MCH and fixed appliances, while the control group comprised 18 untreated subjects with similar dentoskeletal Class III malocclusion. Lateral cephalograms of both patients and controls were analyzed at two time points: posttreatment (PT), after two-phase treatment; and long term (LT). All patients were at a postpubertal stage of skeletal maturity at PT, and they showed CS6 at LT, thus revealing completion of pubertal craniofacial growth. Results: In the long term, the treatment group showed significantly smaller values for mandibular length (Co-Gn), SNB angle, maxillomandibular differential, and molar relation. When compared with the controls, the treated patients exhibited also greater values for ANB angle, Wits appraisal, and overjet at LT. No significant difference between the two groups was found for the changes occurring from PT to LT. Conclusions: Favorable dentoskeletal outcomes induced by MCH and fixed appliances remained stable in the long term; untreated Class III malocclusion did not show any tendency toward self-improvement during the postpubertal interval.


2015 ◽  
Vol 1 (2) ◽  
pp. 116
Author(s):  
Dwi Agustina ◽  
Soekarsono Hardjono ◽  
Sri Suparwitri

Maloklusi kelas III dapat didefinisikan sebagai kelainan wajah skeletal dengan karakteristik posisi mandibula lebih maju terhadap dasar cranium dan atau terhadap maksila. Ada tiga pilihan perawatan untuk maloklusi kelas III dentoskeletal yaitu; modifikasi pertumbuhan, kamuflase dan bedah orthognatik. Artikel ini mempresentasikan kasus seorang pasien dewasa dengan maloklusi kelas III dentoskeletal yang dirawat dengan ortodontik kamuflase menggunakan teknik Begg. Seorang pasien laki-laki, berusia 16 tahun, didiagnosa maloklusi kelas III Angle dengan hubungan skeletal kelas III dan gigi depan maksila dan mandibula berjejal. Perawatan menggunakan alat cekat teknik Begg dengan pencabutan premolar kedua maksila dan premolar pertama mandibula serta elastis intermaxillar kelas III. Kesimpulan hasil perawatan selama 10 bulan menunjukkan bahwa kamuflase ortodontik dapat dianggap sebagai terapi yang efektif untuk koreksi maloklusi kelas III dentoskeletal.   ABSTRACT: A Camouflage Treatment Of Dentoskeletal Class III Malocclusion In Adult Using Begg Technique B. Class III malocclusion can be defined as a skeletal facial deformity characterized by a forward mandibular position with respect  to the cranial base and or the maxilla. There are three main treatment options for dentoskeletal class III malocclusion: growth modification, orthodontic camouflage and orthognatic surgery. The article presented a case of an adult patient with dentoskeletal class III malocclusion treated with orthodontic camouflage treatment with Begg technique. A male patient, 16 years old, diagnosis malocclusion Angle class III, skeletal class III with crowding anterior teeth maxilla and mandibular. Using the fixed appliance, Begg technique, with the extraction of second premolars maxilla and first premolars mandibular. The appliance is completed with intermaxillary class III elastics. The results for 10 months of this treatment indicated that orthodontic camouflage can be considered an effective therapy for corection of dentoskeletal class III malocclusion.


2016 ◽  
Vol 19 (1) ◽  
pp. 163
Author(s):  
Robertus Meidiyanto ◽  
Wayan Ardhana

Latar Belakang: Maloklusi Pseudo kelas III ditandai dengan hubungan yang tidak harmonis antara relasi anteroposterior rahang dan posisi mandibula terhadap maksila. Ketidakharmonisan tersebut dapat disebabkan karena mandibula yang normal dengan maksila retrusif. Maloklusi pseudo kelas III mempunyai perhitungan yang menunjukkan bentuk antara klas I dan skeletal klas III. Perbedaanya hanya pada sudut gonial dimana pada skeletal klas III sudutnya lebih tumpul, sedangkan pada sampel pseudo klas III, sudut gonial lebih mirip dengan klas I. Perawatan ortodontik dengan alat cekat teknik Begg dapat juga untuk merawat maloklusi Angle kelas III, termasuk maloklusi skeletal yang menyertainya. Tujuan: memaparkan perubahan dental dan skeletal setelah perawatan dengan alat cekat teknik Begg. Kasus: perempuan 20 tahun mengeluhkan gigi-gigi rahang atas ada yang tumbuh di belakang dan rahang bawah nyakil sehingga menganggu penampilan dan mengurangi rasa percaya diri. Diagnosis: Maloklusi Angle Klas III subdivisi serta hubungan skeletal klas III dengan maksila retrusif dan mandibula protusif disertai Crossbite: 12, 11, 21, 22 terhadap 34, 32,31, 41, 42, 43. Perawatan: menggunakan alat cekat teknik Begg tanpa pencabutan. Kesimpulan: Hasil menunjukkan crowded terkoreksi, overjet dan overbite terkoreksi, relasi molar menjadi klas I. Background: Pseudo class III malocclusion characterized by disharmony between anteroposterior relationship of jaw and mandibulae position toward maxilla. This disharmony cause by normally shaped mandibles and underveloped maxillae. Pseudo clas III malocclusion is an intermediate form between class I and skeletal clas III malocclusion. The only exception was the gonial angle, which was generally more obtuse in the skeletal class III sample. Measurement of gonial angle in the pseudo class III sample was found to be rather similar to class I sample. Fixed Begg orthodontic appliance can be used to treat Angle’s class III malocclusion accompany with skeletal problem. Purpose: to describe dental and skeletal changes after begg fixed orthodontic. Case: 20 year old woman complained of crowded maxilla front teeth and mandible protrusion. Diagnosis: malocclusion Angle class III subdivision, skeletal class III with maxilla retruded and mandibular pronation along with anterior crossbite: 12, 11, 21, 22, to 34, 32, 31, 41, 42, 43. Treatment: using the Begg fixed appliance techniques without extraction. Conclusion: The result showed that crowded, overjet and overbite corrected, and molar relation become class I.


Author(s):  
MZ Hossain

This article is a continuation of the series of technique training in orthodontics especially for the postgradute trainees as well as for the practitioners who will learn and practice Fixed Appliance Technique. Once again, I believe that post-graduate trainee doctors, faculty members, private practitioners and all other concerned will find this article as a guide line during their training as well as in their professional practicing period. The article describes the technique training and design of standard edge-wise-technique in sequential stages with illustrated case reports for treating class III molar relationship with crowded arch in maxilla and anterior cross bite. The author acknowledges that the article is summarized from the lectures, handouts during his postgraduate studies in Kyushu University and Hiroshima University, Japan DOI: http://dx.doi.org/10.3329/bjodfo.v1i2.15989 Ban J Orthod & Dentofac Orthop, April 2011; Vol-1, No.2, 29-36


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