Adenotonsilectomia e Classe II esquelética – estudo de casocontrole

2021 ◽  
Vol 14 (54) ◽  
pp. 89-97
Author(s):  
Taís Morais Alves Cunha ◽  
Carlos Maurício Cardeal Mendes
Keyword(s):  
Early Childhood ◽  
Young Patients ◽  
Class Ii ◽  
Control Group ◽  
Case Group ◽  
Class Ii Malocclusion ◽  
Craniofacial Growth ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
The Impact

Introduction: The maxillomandibular lateral growth imbalance with mandibular retrusion related to the maxilla indicates the skeletal Class II pattern. This craniofacial morphological abnormality is often attributed to nasorespiratory obstruction due to pharyngeal and palatine tonsils hypertrophy. The adenotonsillectomy is indicated to young patients with respiratory obstruction. However, there is no information in the scientific literature concerning the impact of tonsils surgically removal on craniofacial growth and development. Objective: To identify the association between adenotonsillectomy and skeletal Class II. Material and Methods: An unpaired case-control study was performed. Adult subjects who agreed to participate filled a questionnaire and after identification of the skeletal pattern through radiographic cephalometric analysis were allocated into two groups: CASE GROUP composed of 23 subjects with skeletal Class II malocclusion and CONTROL GROUP composed of 27 subjects without skeletal Class II malocclusion. With specific software the images were evaluated and measured to compare craniofacial measurements between the experimental groups and this data was interpreted to verify the association between skeletal Class II and the occurrence of adenotonsillectomy in early childhood. Results: the adenotonsillectomy demonstrated protective potential for skeletal Class II development due to a strong epidemiological association between adenotonsillectomy and skeletal Class II anteroposterior discrepancy (ORC = 0.33), without gender interference (ORA = 0.91). Conclusions: Among the long-term benefits of performing adenotonsillectomy in early childhood, it may be considered the prevention of craniofacial growth alterations such as Class II maxillomandibular discrepancy.

scholarly journals Evaluation of the miniplate-anchored Forsus Fatigue Resistant Device in skeletal Class II growing subjects: A randomized controlled trial

2018 ◽  
Vol 89 (3) ◽  
pp. 391-403 ◽  
Author(s):  
Sherif A. Elkordy ◽  
Amr M. Abouelezz ◽  
Mona M. S. Fayed ◽  
Mai H. Aboulfotouh ◽  
Yehya A. Mostafa
Keyword(s):  
Controlled Trial ◽  
Class Ii ◽  
Control Group ◽  
Class Ii Malocclusion ◽  
Mandibular Incisor ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Group 16 ◽  
Leveling And Alignment ◽  
Forsus Fatigue Resistant Device

ABSTRACT Objectives: To evaluate the use of direct miniplate anchorage in conjunction with the Forsus Fatigue Resistant Device (FFRD) in treatment of skeletal Class II malocclusion. Materials and Methods: Forty-eight females with skeletal Class II were randomly allocated to the Forsus plus miniplates (FMP) group (16 patients, age 12.5 ± 0.9 years), Forsus alone (FFRD; 16 patients, age 12.1 ± 0.9 years), or the untreated control group (16 subjects, age 12.1 ± 0.9 years). After leveling and alignment, miniplates were inserted in the mandibular symphysis in the FMP group. The FFRD was inserted directly on the miniplates in the FMP group and onto the mandibular archwires in the FFRD group. The appliances were removed after reaching an edge-to-edge incisor relationship. Results: Data from 46 subjects were analyzed. The effective mandibular length significantly increased in the FMP group only (4.05 ± 0.78). The mandibular incisors showed a significant proclination in the FFRD group (9.17 ± 2.42) and a nonsignificant retroclination in the FMP group (−1.49 ± 4.70). The failure rate of the miniplates was reported to be 13.3%. Conclusions: The use of miniplates with the FFRD was successful in increasing the effective mandibular length in Class II malocclusion subjects in the short term. The miniplate-anchored FFRD eliminated the unfavorable mandibular incisor proclination in contrast to the conventional FFRD.

scholarly journals Craniofacial And Dentoalveolar Morphology In Individuals With Prader-Willi Syndrome: A Case-Control Study.

2021 ◽  
Author(s):  
Gisela Vasconcelos ◽  
Jo Stenehjem ◽  
Stefan Axelsson ◽  
Ronnaug Saeves
Keyword(s):  
Young Adults ◽  
Class Ii ◽  
Growth Direction ◽  
Control Group ◽  
Craniofacial Growth ◽  
Prader Willi Syndrome ◽  
Class Iii ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Lateral Cephalograms

Abstract Background: Prader-Willi syndrome (PWS) is a complex multisystem genetic disorder with distinct genetic and clinical features. Among other clinical symptoms, PWS is characterized by severe infantile hypotonia with feeding problems, childhood onset hyperphagia, obesity, scoliosis, short stature combined with growth hormone deficiency and developmental delay. PWS is associated with facial dysmorphology, orofacial dysfunction, oral abnormalities, low salivary flow and subsequent severe tooth wear. Little is known about the craniofacial growth direction or dental and skeletal relationships in individuals with PWS in different ages. The purpose of this study was to assess the craniofacial and dentoalveolar characteristics and to investigate the craniofacial growth direction separately in children, young adults and adults with PWS, using a cephalometric analysis of lateral cephalograms. Results: Lateral cephalograms of 42 individuals with a confirmed genetic diagnosis of PWS were analysed and divided into three groups according to their age: Children (< 12 years), young adults (12 – 20 years) and adults (> 20 years). Cephalometric variables were compared between PWS patients and healthy age- and sex-matched controls.Significant deviations and distinct craniofacial patterns were found in children, young adults and adults with PWS compared with the control group. Children showed retrognatic mandible with a skeletal class II relationship, posterior growth direction and longer anterior face height. The young adults had smaller cranial base angle, a skeletal class II pattern and a higher anterior lower face than the control group. Adults with PWS had a prognathic mandible, skeletal class III relationship with anterior growth direction, more retroclined lower incisors and proclined upper incisors than the controls. Similar results were found when comparing the three groups with PWS; the adults had a prognathic mandible, skeletal class III pattern and anterior growth direction. Children had a retropositioned mandibula, skeletal class II relationship and posterior growth direction. Conclusion: This study may contribute to a better understanding of the craniofacial growth pattern in children, young adults and adults with PWS and may have a clinical importance when planning dental treatment, such as prosthodontics and/or orthodontics.

scholarly journals Effects of skeletally anchored Class II elastics: A pilot study and new approach for treating Class II malocclusion

2017 ◽  
Vol 87 (4) ◽  
pp. 505-512 ◽  
Author(s):  
Selin Ozbilek ◽  
Ahmet Yalcin Gungor ◽  
Salih Celik
Keyword(s):  
Class Ii ◽  
Matched Pair ◽  
Sign Test ◽  
Control Group ◽  
Class Ii Malocclusion ◽  
Significant Group ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Two Miniplates ◽  
Class Ii Elastics

ABSTRACT Objective: To evaluate the skeletal, dentoalveolar, and soft tissue effects of skeletally anchored Class II elastics and compare them with a matched control group treated by a monobloc appliance for the correction of skeletal Class II malocclusion due to mandibular retrusion. Materials and Methods: Twelve patients (6 girls, 6 boys) were randomly divided into two groups. In the elastics group, six patients (12.9 ± 1.5 years of age; 3 boys, 3 girls) were treated with skeletally anchored Class II elastics. Two miniplates were placed bilaterally at the ramus of the mandible and the other two miniplates were placed at the aperture piriformis area of the maxilla. In the monobloc group (3 boys and 3 girls; mean age, 12.3 ± 1.6 years), patients used the monobloc appliance. The changes observed in each phase of treatment were evaluated using the Wilcoxon matched-pair sign test. Intergroup comparisons at the initial phase of treatment were analyzed by the Mann-Whitney U test. Results: There were statistically significant group differences in Co-Gn, B-VRL, U1-PP, U1-VRL, Ls-VRL, with significant increases in these parameters in the elastics group (P &lt; .05). The mandibular incisors were protruded in the monobloc group (5.45 ± 1.23°), whereas they were retruded in the elastics group (−3.01 ± 1.66°; P &lt; .01). Conclusions: The undesirable dentoalveolar effects of the monobloc appliance were eliminated by using miniplate anchorage. Favorable skeletal outcomes can be achieved by skeletal anchorage therapies which could be an alternative to treat skeletal Class II patients with mandibular deficiency.

scholarly journals A Retrospective Cephalometric Evaluation of Dental Changes with Activator and Activator Headgear Combination in the Treatment of Skeletal Class II Malocclusion

2011 ◽  
Vol 12 (1) ◽  
pp. 14-18 ◽  
Author(s):  
G Anil Kumar ◽  
Amit Maheshwari
Keyword(s):  
Class Ii ◽  
Combination Group ◽  
Control Group ◽  
Class Ii Malocclusion ◽  
Mandibular Incisor ◽  
Lower Incisor ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Lateral Cephalograms ◽  
Functional Appliances

ABSTRACT Aim The aims of this study were to evaluate the dental changes brought about by activator and activator headgear combination (ACHG) and to determine whether we can achieve control over the lower incisor proclination which is a side effect of using functional appliances; or not, while treating cases of skeletal class II malocclusions. Methods Lateral cephalograms of 45 skeletal class II division 1 patients were selected for the study. Fifteen of them were successfully treated with an Andresen activator and the other 15 with an activator headgear combination. Fifteen class II subjects who had declined treatment served as the control group. Cephalometric landmarks were marked by one author to avoid interobserver variability. Results The results revealed that both the activator and the activator headgear combination significantly (p < 0.001) affected dental variables measured. The mandibular incisor proclination was effectively controlled in the activator headgear combination group. Conclusion An activator headgear combination would offer itself as a better option compared with activator alone in the treatment of skeletal class II malocclusions especially in cases with proclined mandibular incisors. Clinical significance When one of the treatment goals is to achieve a greater control over mandibular incisor proclination in the treatment of Skeletal Class II malocclusions, employing a combination of activator and headgear may substantially improve clinical outcomes. How to cite this article Lall R, Kumar GA, Maheshwari A Kumar M. A Retrospective Cephalometric Evaluation of Dental Changes with Activator and Activator Headgear Combination in the Treatment of Skeletal Class II Malocclusion. J Contemp Dent Pract 2011;12(1):14-18.

scholarly journals Evaluation of effect of PowerScopeTM class II corrector on skeletal, dental and Oro-pharyngeal airway dimension in Skeletal class II cases - A controlled prospective clinical study

2021 ◽  
Vol 7 (2) ◽  
pp. 144-149
Author(s):  
Vijaylaxmi Mendigeri ◽  
Sanjay Ganeshkar ◽  
Praveen Ramdurg ◽  
Shruti Singh ◽  
Nishi Grover ◽  
...  
Keyword(s):  
Class Ii ◽  
Control Group ◽  
Prospective Clinical Study ◽  
Class Ii Malocclusion ◽  
Skeletal Class ◽  
Pharyngeal Airway ◽  
Skeletal Class Ii ◽  
And Control ◽  
Experimental Group ◽  
Lower Incisors

: The aim of this study was to evaluate the effect of PowerScope (Class II Corrector) on skeletal, dental and oro-pharyngeal airway dimensions in class II malocclusion with retrusive mandible. Twenty patients with age group of 11 to 14 were selected for this study. Experimental group underwent Power scope class II corrector therapy and control group, alignment of only upper arch respectively. Lateral cephalometric radiographs were taken in both experimental group and control group before and after 6 month of treatment. Sixteen measurements in that eight skeletal, five dental and three pharyngeal airway were assessed to know the effect of PowerScope Class II corrector on skeletal, dental and pharyngeal airway PowerScope Class II corrector after treatment showed significant change in SNB (P = 0.01*), ANB (P=0.001*), Inferior airway space (IAS) (P=0.006*), lower incisors position (P=0.0001*) and overjet (P=0.0001*) where as these values were insignificant on comparison with control group except for lower incisors position (P=0.001*) and overjet (P=0.0001*) indicating that PowerScope corrects class II malocclusion mainly by dento alveolar changes not have significant effect on skeletal and oro-pharyngeal airway. Power Scope (Class II corrector) corrects skeletal class II malocclusion mainly by dental changes and has insignificant effect on skeletal and oro-pharyngeal airway.

scholarly journals Stability of Class II Malocclusion Treatment with the Austro Repositioner Followed by Fixed Appliances in Brachyfacial Patients

2021 ◽  
Vol 18 (18) ◽  
pp. 9793
Author(s):  
Maria Dolores Austro-Martinez ◽  
Ana I. Nicolas-Silvente ◽  
Eugenio Velasco-Ortega ◽  
Alvaro Jimenez-Guerra ◽  
Jose A. Alarcon
Keyword(s):  
Test Group ◽  
Class Ii ◽  
Control Group ◽  
Class Ii Malocclusion ◽  
Fixed Appliance ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Lateral Cephalograms ◽  
Fixed Appliances ◽  
One Year

One of the goals of functional-appliance devices is to modify the vertical growth pattern, solving several kinds of malocclusion. This study aimed to evaluate Class II malocclusion treatment’s stability with Austro Repositioner, followed by fixed appliances, and assess its capacity to modify vertical dimensions in brachyfacial patients. A test group of 30 patients (16 boys and 14 girls, mean 11.9 years old) with Class II malocclusion due to mandibular retrognathism and brachyfacial pattern treated with Austro Repositioner and fixed appliance were compared to a matched untreated Class II control group of 30 patients (17 boys and 13 girls, mean age 11.7 years old). Lateral cephalograms were taken at T1 (initial records), T2 (end of treatment), and T3 (one year after treatment). Statistical comparisons were performed with a paired-sample t-test and two-sample t-tests. Significant improvements in the skeletal Class II relationship were observed in the treated group. The ANB angle decreased (4.75°), the SNB angle increased (3.92°), and the total mandibular length (Co-Pg) increased (8.18 mm) (p < 0.001). Vertical dimensions were also significantly modified, the FMA angle increased (3.94°), LAFH-distance increased (3.15 mm), and overbite decreased (3.35 mm). These changes remained stable one year after treatment. The Austro Repositioner was adequate for treating the skeletal Class II malocclusion resulting from the mandible retrusion in brachyfacial patients.

Uso de propulsor mandibular fixo Flex Developer como recurso no tratamento da Classe II em paciente não colaborador

2020 ◽  
Vol 13 (52) ◽  
pp. 40-51
Author(s):  
Renato Barcellos Rédua
Keyword(s):  
Upper Airway ◽  
Class Ii ◽  
Class Ii Malocclusion ◽  
Skeletal Class ◽  
Advantages And Disadvantages ◽  
Skeletal Class Ii ◽  
High Incidence ◽  
Therapeutic Alternatives ◽  
Smile Aesthetics ◽  
Treatment Alternatives

Class II malocclusion has a high incidence in the population, which may compromise smile aesthetics, occlusion function and stability. Skeletal Class II may affect facial aesthetics and upper airway volume. Class II malocclusion is routinely associated with skeletal Class II condition, having as treatment alternatives the use of Extra Buccal Appliance (EBA) or removable or fixed propulsor appliance. This article describes a case of a patient who did not accept the use of EBA and so it was fitted a Flex Developer propulsor for Class II correction and discussed the advantages and disadvantages of therapeutic alternatives for Class II correction.

A Comparison of Five Different Methods for Describing Sagittal Jaw Relationship

1993 ◽  
Vol 20 (1) ◽  
pp. 13-17 ◽  
Author(s):  
Johannes Kirchner ◽  
Stephen Williams
Keyword(s):  
Correlation Analysis ◽  
Treatment Planning ◽  
Class Ii ◽  
Diagnosis And Treatment ◽  
Class Ii Malocclusion ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Accurate Picture

Analysis of sagittal jaw relationship is important in orthodontic diagnosis and treatment planning, and can be investigated by angular or linear parameters. In the present study an analysis was performed using profile cephalograms of 40 children with skeletal Class II malocclusion. A correlation analysis is presented, involving five different methods of expressing sagittal jaw relationships. Whilst some degree of agreement could be noted, it was not possible to suggest a pair of measurements, which in combination, could give a more accurate picture of sagittal jaw relationships.

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