Cheiloscopy: An Early Indicator of Class I & Class II Malocclusion

2019 ◽  
Vol 11 (2) ◽  
pp. 42-48
Author(s):  
Dr. Varsha Das ◽  
Dr. Vinaya .S. Pai ◽  
Dr. Siri Krishna ◽  
Dr. Shivaprasad Gaonkar ◽  
Dr. Gautham Kalladka ◽  
...  
Keyword(s):  
Class Ii ◽  
Class I ◽  
Class Ii Malocclusion ◽  
Type I ◽  
Type Ii ◽  
Early Indicator ◽  
Skeletal Class ◽  
Type Iv ◽  
Skeletal Class Ii ◽  
Type V

This study was done to determine & correlate the lip print patterns in Skeletal Class I & Class II malocclusions. A sample of 160 individuals (80 skeletal Class I & 80 skeletal Class II malocclusion) aged 12 years and above, were selected for the study. A dark coloured lipstick was applied onto the cleaned & dried lips with a single stroke. A lip impression was made on a transparent cellophane tape strip which was removed & stuck to a white bond paper. Lip print patterns were analysed based on the Tsuchihashi classification i.e. Type I, Type I’, Type II, Type III, Type IV & Type V. The field of observation was confined to 10mm on either side of the quadrant from the midline and the pattern was resolved by counting highest number of lines in this area. Statistical analyses indicated that the prevalence of Type I & Type II lip pattern was significantly higher in Skeletal Class I & Class II malocclusion subjects respectively. The results showed a significant correlation between lip prints and skeletal sagittal malocclusion. Cheiloscopy can act as an early indicator of skeletal malocclusions, but further research is required for the evaluation of lip prints in a larger sample with distinctinherited malocclusions.

scholarly journals No Compliance Correction of Class II Malocclusion in Growing Patients Whit HERBST Appliance: A Case Report

2018 ◽  
Vol 12 (1) ◽  
pp. 605-613 ◽  
Author(s):  
M. Portelli ◽  
A. Militi ◽  
M. Cicciù ◽  
A. Lo Giudice ◽  
G. Cervino ◽  
...  
Keyword(s):  
Class Ii ◽  
Class I ◽  
Class Ii Malocclusion ◽  
Herbst Appliance ◽  
Functional Therapy ◽  
Deep Bite ◽  
Mandibular Growth ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Mandibular Retrusion

Background:Class II malocclusion is the most common sagittal skeletal discrepancy, with a prevalent skeletal pattern of mandibular retrusion. The correction of mandibular retrusion with functional removable appliance needs a good patient’s compliance; for this reason, some clinicians prefer to use no compliance apparatus.Objective:Objective of the present therapy note is to demonstrate that the use of no compliance apparatus can provide a good correction of skeletal class II malocclusion.Methods:In the present study, authors report a therapy note referred to a 10 years old patient, woman, affected by Class II, with mandibular retrusion and deep bite, treated in 2013 at the Dep. of Orthodontics of Messina University. An orthodontic treatment has been planned with the aim of stimulating mandibular growth; an Herbst appliance with a cantilever design, bonded on first maxillary and mandibular molars, has been used. After eleven months of functional therapy a bilateral molar class I have been obtained.Results:In the therapy note proposed, authors obtained a resolution of mandibular retrusion, a correction of overjet, overbite and dental crowding in both arches, and a bilateral molar and canine class I has been achieved.Conclusion:Herbst appliance seems to be efficient in the correction of II Class Malocclusion, independently from patient’s cooperation; moreover , early correction of Class II malocclusion with functional appliances produces several clinical advantages.

scholarly journals Prevalence of Dental Anomalies in Skeletal Malocclusions with Different Growth Patterns in North Indian Population- A Cross-sectional Study

2021 ◽  
Author(s):  
Floret Jose ◽  
Maninder S Sidhu ◽  
Ashish Dabas ◽  
Seema Grover ◽  
Namrata Dogra
Keyword(s):  
Growth Pattern ◽  
Indian Population ◽  
Class Ii ◽  
Growth Patterns ◽  
Class I ◽  
Class Ii Malocclusion ◽  
North Indian Population ◽  
Dental Anomalies ◽  
Skeletal Class ◽  
Skeletal Class Ii

Introduction: Anomalies of the developing dentition occur due to absence or interruption of normal tooth development along with genetic and/or environment influences. Craniofacial development and dental malocclusion is an interplay between a number of factors such as tooth size, arch size and shape, the number and arrangement of teeth, size and relationship of the jaws and related soft tissues including lips, cheeks, and tongue. Aim: To evaluate the prevalence and distribution of dental anomalies among different skeletal malocclusions and growth patterns in North Indian population. Materials and Methods: This retrospective cross-sectional study was conducted on pretreatment diagnostic records of 260 patients belonging to the age group of 15-25 years, who had reported to the Out Patient Department (OPD) of Department of Orthodontics, Faculty of Dental Sciences, SGT University, Gurugram, Haryana, India, during the period of April 2012 to December 2020. The analysis was carried out between November 2020 and January 2021. The study sample was grouped into different growth patterns and skeletal malocclusions based on Sella-Nasion-Gonion- Gnathion (SN Go-Gn) and ANB (A point, nasion, B point), Sagittal intermaxillary angle values respectively, which were obtained from the pretreatment lateral cephalometric tracings. The prevalence of dental anomalies was evaluated in each group by examining the pretreatment diagnostic records. Chi-Square/Fisher-Freeman- Halton test were used for statistical analysis. Results: The prevalence of dental anomalies in the study sample was 65 (25%). The most common anomaly found was over retained deciduous teeth, followed by ectopic eruption with prevalence rate of 30 (11.5%) and 24 (9.2%), respectively. A total of 142 (54.6%) patients had hypodivergent growth pattern, 23 (8.8%) had normodivergent growth pattern and 95 (36.5%) had hyperdivergent growth pattern. 36 (13.8%) patients had skeletal class I malocclusion, 205 (78.8%) had skeletal class II malocclusion and 19 (7.3%) patients had skeletal class III malocclusion. Hypodivergent group showed the highest prevalence of dental anomalies with 38 (26.8%), followed by hyperdivergent group with 23 (24.2%) and normodivergent group were 4 (17.4%). Skeletal class I malocclusion group had the highest number of dental anomalies as 13 (36.1%), followed by skeletal class II malocclusion with 50 (24.4%) and skeletal class III malocclusion group with 2 (10.5%). Conclusion: Hypodivergent growth pattern and skeletal class II malocclusion were the most prevalent growth pattern and skeletal malocclusion in North Indian population. Dental anomalies were most prevalent in patients with hypodivergent growth pattern and skeletal class I malocclusion. The results of the present study indicate that dental anomalies are associated with certain malocclusions and growth patterns which may contribute to more accurate treatment predictions.

scholarly journals Three-dimensional study of the upper airway in different skeletal Class II malocclusion patterns

2018 ◽  
Vol 89 (1) ◽  
pp. 93-101
Author(s):  
Fernando C. Brito ◽  
Daniel P. Brunetto ◽  
Matilde C. G. Nojima
Keyword(s):  
Linear Regression Analysis ◽  
Three Dimensional ◽  
Upper Airway ◽  
Class Ii ◽  
Class I ◽  
Class Ii Malocclusion ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Intergroup Comparison ◽  
Reconstruction Software

ABSTRACT Objectives: To characterize upper airway volume and morphology in patients with different skeletal patterns of Class II malocclusion compared to Class I. Materials and Methods: A total of 197 individuals who had cone-beam computed tomography were allocated into groups according to ANB, SNA, and SNB angles (Class I, Class II maxillary protrusion, Class II mandibular retrusion), each subdivided into hypodivergent, normal, and hyperdivergent. Nasopharynx (NP), oropharynx (OP), and hypopharynx (HP) were assessed with three-dimensional image reconstruction software. Results: Intergroup comparison did not detect significant differences in volume and morphology of NP, OP, and HP. The males displayed larger OP and HP volume than the females. Positive correlations between age and NP, OP, HP volume and between craniocervical angle and OP and HP volume were observed. Linear regression analysis detected a tendency for OP and HP volume to increase as maxillary and mandibular length increased. Conclusions: Upper airway volume and morphology were similar in different skeletal patterns of Class II malocclusion. Actual upper and lower jaw lengths were more closely related to upper airway volume and morphology than the angles that reflected their position relative to the cranial base.

scholarly journals Glenoid fossa position in skeletal class-II malocclusion due to retrognathic mandible and skeletal class-I malocclusion in Pakistani population

2021 ◽  
Vol 12 (4) ◽  
Author(s):  
Rabia Tabassum ◽  
Nazish Amjad ◽  
Faiza Malik
Keyword(s):  
Class Ii ◽  
T Test ◽  
Class I ◽  
Diagnostic Feature ◽  
Class Ii Malocclusion ◽  
Glenoid Fossa ◽  
Skeletal Class ◽  
Skeletal Malocclusion ◽  
Skeletal Class Ii ◽  
Lateral Cephalograms

BACKGROUND & OBJECTIVE: Different dental and skeletal abnormalities interact with each other to cause multiple malocclusions of various areas of the dentofacial region. Association of the mandible and cranial base influence the malocclusions in anteroposterior and vertical dimensions that influences the evaluation of the skeletal components of a particular patient, so the relationship of glenoid fossa to adjacent craniofacial components must be taken into account. This research is conducted for the comparison of glenoid fossa position in subjects presenting with class II skeletal malocclusion due to retrognathic mandible and class I skeletal malocclusion. METHODOLOGY: Standardized lateral cephalograms of 130 patients were selected according to inclusion criteria from the orthodontic department. These radiographs were traced, and different angular and linear measurements were recorded. Then the position of glenoid fossa was compared in subjects of class II malocclusion with retrognathic mandible and class I malocclusion. SPSS version 17 was used for data analysis. Cephalometric measurements were analyzed, and glenoid fossa position was compared in both groups by using student’s t-test. Statistical level of significance using student t test was p< 0.05 RESULTS: Position of glenoid fossa in subjects with class II malocclusion is more distal and posterior as compared to the subjects with class I malocclusion. The effective parameters for the measurements of glenoid fossa are GF-S on FH, GF-Ptm on FH, and GF-FMN with p value 0.0001. CONCLUSION: A distally and posteriorly placed glenoid fossa is an important diagnostic feature of Class II skeletal malocclusion with the retrognathic mandible.  

scholarly journals Changes in soft tissue profile using functional appliances in the treatment of skeletal class II malocclusion

2015 ◽  
Vol 143 (1-2) ◽  
pp. 12-15 ◽  
Author(s):  
Zorana Stamenkovic ◽  
Vanja Raickovic ◽  
Vladimir Ristic
Keyword(s):  
Soft Tissue ◽  
Class Ii ◽  
Orthodontic Appliances ◽  
Class Ii Malocclusion ◽  
Type I ◽  
Upper Lip ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Facial Esthetics ◽  
Soft Tissue Profile

Introduction. The effects of orthodontic treatment are considered to be successful if the facial harmony is achieved, while the structures of soft tissue profile are in harmony with skeletal structures of neurocranium and viscerocranium. In patients with skeletal distal bite caused by mandibular retrognathism, facial esthetics is disturbed often, in terms of pronounced convexity of the profile and change in the position and relationship of the lips. Objective. The aim of this study was to determine the extent of soft tissue profile changes in patients with skeletal Class II malocclusion treated with three different orthodontic appliances: Fr?nkel functional regulator type I (FR-I), Balters? Bionator type I and Hotz appliance. Methods. The study included 60 patients diagnosed with skeletal Class II malocclusion caused by mandibular retrognathism, in the period of early mixed dentition. Each subgroup of 20 patients was treated with a variety of orthodontic appliances. On the lateral cephalogram, before and after treatment, the following parameters were analyzed: T angle, H angle, the height of the upper lip, the position of the upper and lower lip in relation to the esthetic line. Within the statistical analysis the mean, maximum, minimum, standard deviation, coefficient of variation, two-factor analysis of variance with repeated measures and the factor analysis of variance were calculated using ANOVA, Bonferroni test and Student?s t-test. Results. A significant decrease of angles T and H was noticed in the application of FR-I, from 21.60? to 17.15?, and from 16.45? to 13.40? (p<0.001). FR-I decreased the height of the upper lip from 26.15 mm to 25.85 mm, while Hotz appliance and Balters? Bionator type I increased the height of the upper lip, thereby deteriorating esthetics of the patient. Conclusion. All used orthodontic appliances lead to changes in soft tissue profile in terms of improving facial esthetics, with the most distinctive changes in the application of Fr?nkel?s functional regulator type I, which is the most successful appliance for achieving the overall facial harmony of the patient.

scholarly journals Assessment of upper airways measurements in patients with mandibular skeletal Class II malocclusion

2015 ◽  
Vol 20 (5) ◽  
pp. 86-93 ◽  
Author(s):  
Nayanna Nadja e Silva ◽  
Rosa Helena Wanderley Lacerda ◽  
Alexandre Wellos Cunha Silva ◽  
Tania Braga Ramos
Keyword(s):  
Pearson Correlation ◽  
Intraclass Correlation ◽  
Class Ii ◽  
Class I ◽  
Class Ii Malocclusion ◽  
Growth Trend ◽  
Upper Airways ◽  
Skeletal Class ◽  
Skeletal Class Ii ◽  
Lateral Cephalograms

Objective: Mandibular Class II malocclusions seem to interfere in upper airways measurements. The aim of this study was to assess the upper airways measurements of patients with skeletal Class II malocclusion in order to investigate the association between these measurements and the position and length of the mandible as well as mandibular growth trend, comparing the Class II group with a Class I one.Methods:A total of 80 lateral cephalograms from 80 individuals aged between 10 and 17 years old were assessed. Forty radiographs of Class I malocclusion individuals were matched by age with forty radiographs of individuals with mandibular Class II malocclusion. McNamara Jr., Ricketts, Downs and Jarabak's measurements were used for cephalometric evaluation. Data were submitted to descriptive and inferential statistical analysis by means of SPSS 20.0 statistical package. Student's t-test, Pearson correlation and intraclass correlation coefficient were used. A 95% confidence interval and 5% significance level were adopted to interpret the results.Results:There were differences between groups. Oropharynx and nasopharynx sizes as well as mandibular position and length were found to be reduced in Class II individuals. There was a statistically significant positive correlation between the size of the oropharynx and Xi-Pm, Co-Gn and SNB measurements. In addition, the size of the nasopharynx was found to be correlated with Xi-Pm, Co-Gn, facial depth, SNB, facial axis and FMA.Conclusion: Individuals with mandibular Class II malocclusion were shown to have upper airways measurements diminished. There was a correlation between mandibular length and position and the size of oropharynx and nasopharynx.

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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