scholarly journals Osteossíntese no Tratamento Cirúrgico dos Prognatismos: Estado da Arte

2017 ◽  
Vol 30 (3) ◽  
pp. 224
Author(s):  
Nuno Durão ◽  
José Amarante
Keyword(s):  
Relevant Literature ◽  
Inferior Alveolar Nerve ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Sagittal Split Ramus Osteotomy ◽  
Acceptable Alternative ◽  
Mandibular Setback ◽  
Common Technique ◽  
The Stability

Introduction: Prognathism is a common skeletal facial abnormality, associated with class III malocclusion, often with repercussions in quality of life. In addition to orthodontic treatment, sagittal split ramus osteotomy is the most common technique for its correction, and segment osteosynthesis is an important element of the post-surgical outcome.Materials and Methods: A search for relevant literature was conducted in the PubMed/MEDLINE database and in other relevant sources.Results: The stability of different fixation methods, their repercussions on inferior alveolar nerve lesions, and the type of material are among the most researched subjects.Discussion: Recent research about the type of osteosynthesis applied in the sagittal split ramus osteotomy for mandibular setback is discussed.Conclusion: Miniplates appear to be the better option for fixation of sagittal split osteotomy for mandibular setback. Bioabsorbable osteosynthesis may be an acceptable alternative to titanium.

scholarly journals Stability of bimaxillary surgery on Class III malocclusion treatment

2012 ◽  
Vol 17 (6) ◽  
pp. 41-51 ◽  
Author(s):  
Fernando Antonio Gonçalves ◽  
Vânia Célia Vieira de Siqueira
Keyword(s):  
Muscle Adaptation ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Mandibular Setback ◽  
Skeletal Malocclusion ◽  
Lateral Cephalograms ◽  
Maxillary Surgery ◽  
Bimaxillary Surgery ◽  
Student’S T ◽  
The Stability

OBJECTIVE: To evaluate the stability of bimaxillary surgery in patients with skeletal malocclusion, with the use of rigid internal fixation. METHODS: Lateral cephalograms from 20 patients, 11 males and 9 females, mean age of 26 years and 1 month, were evaluated before surgery, immediately post-operative and at least 6 months after surgery. Nineteen cephalometric measurements were evaluated, and the results were statistically analyzed by means of the Student's t test and the Kruskal-Wallis test. RESULTS: The Le Fort I maxillary advancement surgery showed almost no relapse. There was lack of stability of mandibular setback, with relapse of 37.33% on point B, due to counterclockwise rotation of the mandible between post-operative periods, occurred by better intercuspation after surgery and muscle adaptation. The results showed the same tendencies for both genders. CONCLUSION: It was concluded that on the bimaxillary surgery treatment of Class III malocclusion, the maxillary surgery was very stable, but the mandibular setback recurred. No statistical differences were found in surgical stability between genders.

scholarly journals The effect of freezing-drying, cloudiness and concentration on the keeping quality of various blackcurrant products

1964 ◽  
Vol 36 (1) ◽  
pp. 161-180
Author(s):  
Taina Kuusi
Keyword(s):  
Ascorbic Acid ◽  
Relevant Literature ◽  
Organoleptic Properties ◽  
Black Currant ◽  
Organoleptic Evaluation ◽  
Freeze Dried ◽  
Juice Concentrate ◽  
The Stability ◽  
And Storage

Experiments have been made in the development of various new black-currant products, such as cloudy juice, juice concentrate and various freeze-dried preparations, along with a study of the effect of these different methods of preparation on the initial quality and storage properties. The quality was assessed from the stability of ascorbic acid and colour, the aroma number, and organoleptic evaluation. Storage lasted up to 8 months. It was established that the cloudiness exercised a slight protective effect on ascorbic acid. However, the instability of the cloud meant that the appearance of the cloudy juice was less attractive than that of the clear juice. No well-founded advantage of the cloudy juice could be demonstrated. Concentration proved less suitable, as there occurred harmful changes in ascorbic acid, colour and organoleptic properties. The freezing-drying method was excellent with respect to ascorbic acid and colour. In contrast, considerable losses in aroma occurred, with consequent weakening of the organoleptic properties. This method would be of advantage only in combination with aroma recovery, and solution of the financial problems involved. The results are discussed in the light of relevant literature.

scholarly journals Correction of severe facial asymmetry: A case with fractured condyle

2019 ◽  
Vol 9 ◽  
pp. 59-64
Author(s):  
Ramesh Agrawal ◽  
Dolly P. Patel ◽  
Bhagyashree B. Desai
Keyword(s):  
Facial Asymmetry ◽  
Post Treatment ◽  
Radiographic Examination ◽  
Rigid Fixation ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
History Of ◽  
Condylar Head ◽  
The Stability ◽  
The Right

The current paper depicts the challenges faced during the treatment of a complicated case of mandibular condylar head fracture, facial asymmetry, and centric relation-centric occlusion (CR-CO) discrepancy along with Class III malocclusion. A 20-year-old female reported with the chief complaint of difficulty in chewing and concern with her appearance due to deviated jaw and had a history of trauma over chin region. The clinical and radiographic examination revealed significant facial asymmetry with long face, right-sided deviation of the mandible, fractured condyle, CR-CO discrepancy, cross- bite with Class III malocclusion, and a missing mandibular single incisor along with non-vital 21 and 22. She was treated with 0.022 MBT appliance along with guiding plane for CR-CO correction followed by asymmetric bilateral sagittal split osteotomy and differential set back on the right and left sides and finally rigid fixation. A good facial profile and functional occlusion were achieved and non-vital 21 and 22 were esthetically rehabilitated with PFM crowns. The stability of surgical as well as orthodontic corrections was excellent and appreciable in the records obtained 2-year post-treatment. When faced with mutilated malocclusion, with multiple problems, sequential correction of functional malocclusion with dental decompensation followed by skeletal correction with surgical approach has yielded a appreciable facial correction with good stability showing 2-year post-treatment follow-up.

Quality of Life and Temporomandibular Disorders in Patients With Skeletal Class III Malocclusion With Cleft Lip and Palate

2021 ◽  
pp. 105566562110434
Author(s):  
Bernardo Olsson ◽  
Isabela Polesi Bergamaschi ◽  
Erika Calvano Küchler ◽  
Aline Monise Sebastiani ◽  
Guilherme dos Santos Trento ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Temporomandibular Disorders ◽  
Psychological Factors ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Skeletal Class ◽  
Better Than

Objective The aim of the study was to assess the quality of life (QOL), oral health-related QOL (OHRQOL), temporomandibular disorders (TMDs), and psychological factors in patients with skeletal Class III malocclusion with cleft lip and palate (CLP) and without CLP. Design Case–control. Setting Primary care, institutional practice. Patients One hundred thirty-six patients with skeletal Class III malocclusion with CLP (n = 68) and without CLP (n = 68). Main outcome measures QOL and OHRQOL were assessed using the World Health Organization Quality of Life-BREF (WHOQOL-BREF) questionnaire and the Oral Health Impact Profile-14 questionnaire, respectively. TMDs and psychological factors were assessed using the Research Diagnostic Criteria for TMD (RDC/TMD). Results No differences in QOL were found between the groups ( P >  0.05). Patients with CLP reported a better OHRQOL ( P = 0.025) in the physical pain, physical disability, and psychological disability domains ( P <  0.05). Patients with CLP presented with less myofascial pain (OR, 0.28; 95% CI, 0.11-0.71] and other articular conditions (OR 0.24; 95% CI 0.06-0.90]. More patients with CLP reported no chronic pain ( P = 0.012). The QOL of patients with CLP with no depression or with no nonspecific physical symptoms including pain (NSPSIP) was better than that of patients without CLP. The OHRQOL of patients with CLP without TMDs or no psychological factors was better than that of patients without CLP. Conclusions Patients with skeletal Class III malocclusion who require orthognathic surgery with CLP have better OHRQOL and present with fewer TMDs than those patients without CLP.

scholarly journals Case Report: Orthosurgical Management of Skeletal Class III Malocclusion

2020 ◽  
Vol 54 (2) ◽  
pp. 150-156
Author(s):  
Sanjeev Verma
Keyword(s):  
Case Report ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Skeletal Class ◽  
Comprehensive Management ◽  
Mandibular Setback ◽  
Lower Jaw ◽  
History Of ◽  
Bimaxillary Surgery ◽  
Type 3

VG, 25-year-old male, presented with c/c of forwardly placed lower jaw and history of unsatisfactory previous orthodontic treatment. Extraorally, the patient had asymmetrical face and concave profile, competent lips, positive lip step, and chin deviated toward left side by 2 mm. Intraorally, the patient had Angle’s class III type 3 malocclusion with an overjet of (–1) mm, overbite of 0%, and cross-bite wrt 12, 21. The patient was skeletal class III due to macrognathic and prognathic mandible with hypodivergent growth pattern, and proclined upper and retroclined lower incisors. The patient was managed orthosurgically with bimaxillary surgery (maxillary advancement 3 mm + mandibular setback 7 mm) after presurgical decompensation. The case report discusses in detail the diagnosis and comprehensive management of the skeletal class III case.

An Oral Health-Related Quality of Life Comparison Between Adults With Unilateral Cleft Lip and Palate and Class III Malocclusion

2019 ◽  
Vol 56 (10) ◽  
pp. 1359-1365
Author(s):  
Leandro Almeida Nascimento Barros ◽  
Flávia Aline Silva Jesuino ◽  
João Batista de Paiva ◽  
José Rino-Neto ◽  
José Valladares-Neto
Keyword(s):  
Oral Health ◽  
Orthognathic Surgery ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Health Related Quality ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Related Quality ◽  
Health Related

Objective: To compare oral health-related quality of life (OHRQoL) before treatment of adults with unilateral cleft lip and palate (UCLP) and surgical Class III malocclusion, and to consider if clefts needing different orthodontic treatment protocols could influence people’s self-perception. Design: Cross sectional. Setting: Cleft Lip and Palate Center and Clinic of Orthognathic Surgery from a School of Dentistry. Participants: A sample of adults with repaired nonsyndromic UCLP (n = 52) which was age- and sex-matched with a noncleft Class III malocclusion sample seeking orthognathic surgery (n = 51). In turn, the cleft group was subdivided according to treatment planning into nonsurgical orthodontic and surgical orthodontic approaches. Main Outcome Measure: The whole sample was assessed using the short-form oral health impact profile (OHIP-14), with higher scores indicating a poorer OHRQoL. Statistical comparisons were performed with Mann-Whitney U and Kruskal-Wallis tests, and effect size. Bonferroni adjustment was used for post hoc tests ( P < .017). Results: The OHIP-14 scores of the UCLP and Class III groups were significantly different ( P = .001, η2 = 0.108), and higher in Class III. The largest commitment was in the physical disability, physical pain, and psychological disability domains. In addition, no differences were found when the UCLP treatment planning was considered. Conclusion: Surgical Class III malocclusion have a poorer OHRQoL when compared to patients with UCLP, irrespective of whether they are treated surgically or orthodontically. Therefore, the greater commitment of OHRQoL appears to be influenced by the etiology of Class III, and not by treatment plan.

scholarly journals Combined Orthodontic-surgical Treatment for Skeletal Class III Malocclusion with Multiple Impacted Permanent and Supernumerary Teeth: Case Report

2014 ◽  
Vol 8 (1) ◽  
pp. 43-48
Author(s):  
Dai Juan and Feng Xue
Keyword(s):  
Surgical Treatment ◽  
Primary Teeth ◽  
Treatment Protocol ◽  
Deciduous Teeth ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Supernumerary Teeth ◽  
Sagittal Split Ramus Osteotomy ◽  
Impacted Teeth ◽  
Skeletal Class

In this report we describe a combined orthodontic and surgical treatment for a 14-year-old boy with severe skeletal class III deformity and dental problem. His upper posterior primary teeth in the left side were over-retained and 6 maxillary teeth (bilateral central incisors and canines, left first and second premolars) were impacted, together with 5 supernumerary teeth in both arches. The treatment protocol involved extraction of all the supernumerary and deciduous teeth, surgical exposure and orthodontic traction of the impacted teeth, a bimaxillary orthognathic approach including Lefort I osteotomy. Bilateral sagittal split ramus osteotomy (BSSRO) and genioplasty was performed to correct skeletal problem. After treatment, all of the impacted teeth were brought to proper alignment in the maxillary arch. A satisfied profile and good posterior occlusion was achieved. Treatment mechanics and consideration during different stages are discussed.

scholarly journals Disk Position and Temporomandibular Joint Structure Associated with Mandibular Setback in Mandibular Asymmetry Patients

2009 ◽  
Vol 79 (3) ◽  
pp. 521-527 ◽  
Author(s):  
Masayoshi Kawakami ◽  
Kazuhiko Yamamoto ◽  
Tomohiro Inoue ◽  
Atsuhisa Kajihara ◽  
Masaki Fujimoto ◽  
...  
Keyword(s):  
Temporomandibular Joint ◽  
Contralateral Side ◽  
Magnetic Resonance Images ◽  
University Hospital ◽  
Class Iii ◽  
Sagittal Split Ramus Osteotomy ◽  
Skeletal Class ◽  
Mandibular Setback ◽  
Mandibular Asymmetry ◽  
Articular Disk

Abstract Objective: To determine the changes in articular disk position and the temporomandibular joint (TMJ) structure in patients who had an asymmetric setback of the mandible performed by a bilateral sagittal split ramus osteotomy with manual positioning of the condyle. Materials and Methods: Twenty-two patients with skeletal Class III malocclusion being treated at Nara Medical University Hospital were evaluated using clinical examination and pre- and postoperative magnetic resonance images of their TMJs. Results: Changes in articular disk position after asymmetric setback surgery were not statistically significant, although a tendency of anterior displacement in the fossa was noted. The anterior and posterior joint spaces did not show significant changes, whereas the condyle head of the deviated or contralateral side tended to be positioned downward. Conclusion: The asymmetric setback of the mandible with intraoperative manual positioning of the condyle does not significantly change the disk position in the fossa.

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