Gonial Angle as an Indicator for the Prediction of Growth Pattern

2015 ◽  
Vol 6 (3) ◽  
pp. 161-163 ◽  
Author(s):  
J Rubika ◽  
A Sumathi Felicita ◽  
V Sivambiga
Keyword(s):  
Growth Pattern ◽  
P Value ◽  
Average Growth ◽  
Mean Values ◽  
Gonial Angle ◽  
Angle Measurements ◽  
Lateral Cephalograms ◽  
The Mean ◽  
Level Of Significance ◽  
Vertical Growth Pattern

ABSTRACT Aim To determine the gonial angle, upper gonial angle and lower gonial angle in patients with horizontal, vertical and average growth pattern belonging to the local Chennai population and determine if it can be used as a growth indicator. Materials and methods Gonial angle, upper gonial angle and lower gonial angle measurements were made on lateral cephalograms of 90 patients—44 males and 46 females. Results A one sample t-test was used to determine the mean values for average, horizontal and vertical growth pattern and to check their level of significance. All the values were statistically significant with a p-value = 0.000. Conclusion The upper gonial angle was the same irrespective of growth pattern. The gonial angle and lower gonial angle can be used as an indicator for growth. How to cite this article Rubika J, Felicita AS, Sivambiga V. Gonial Angle as an Indicator for the Prediction of Growth Pattern. World J Dent 2015;6(3):161-163.

scholarly journals Assessment of Vertical Skeletal Patterns using a New Cephalometric Parameter: The Dhaval—Rohan Angle

2017 ◽  
Vol 51 (1) ◽  
pp. 7-11
Author(s):  
Dhaval Ranjitbhai Lekhadia ◽  
Rohan Rai ◽  
Niveditha Hegde ◽  
Abhinay Sorake
Keyword(s):  
Growth Pattern ◽  
Lateral Cephalogram ◽  
Average Growth ◽  
Mean Values ◽  
Vertical Growth ◽  
Lateral Cephalograms ◽  
Significant Difference ◽  
Horizontal Growth ◽  
Point G ◽  
Vertical Growth Pattern

ABSTRACT Introduction The aim of this study was to establish a new cephalometric parameter, named the Dhaval—Rohan angle (DR), to assess the vertical skeletal patterns on a lateral cephalogram with accuracy and reproducibility. Materials and methods One hundred and twenty pretreatment lateral cephalograms of the patients visiting the department of orthodontics and dentofacial orthopedics for treatment were obtained and divided into three groups. i.e., horizontal growth pattern, average growth pattern, and vertical growth pattern cases based on the routinely used cephalometric parameters; FMA, SN-GoGn, Y-axis angle and Jarabak ratio. This angle uses three skeletal landmarks, the point C (center of the condyle), point M (midpoint of premaxilla), and point G (center of the largest circle that is tangent to the internal inferior, anterior, and posterior surfaces of the mandibular symphysis). Results The one-way analysis of variance (ANOVA) test showed that the three groups studied were not the same for DR angle and the post hoc Tukey test found the groups to be significantly different. According to the Student's t-test, there was no statistically significant difference in mean values of DR angle between males and females. Conclusion Cephalometric evaluation of young adults shows that the DR angle below 28.5° indicates a horizontal growth pattern, between 28.5 and 32.5° indicate an average growth pattern and above 32.5° indicate a vertical growth pattern. How to cite this article Lekhadia DR, Rai R, Hegde N, Hegde G, Sorake A, Kumar A. Assessment of Vertical Skeletal Patterns using a New Cephalometric Parameter: The Dhaval—Rohan Angle. J Postgrad Med Edu Res 2017;51(1):7-11.

scholarly journals Correlation Between Gonial Angle And Mandibular Symphysis Width In South Indian Dravidian Population

2020 ◽  
Vol 11 (SPL3) ◽  
pp. 1132-1135
Author(s):  
Anjali Anna Thomas ◽  
Harish Babu ◽  
Remmiya Mary Varghese
Keyword(s):  
Growth Pattern ◽  
Growth Direction ◽  
Growth Patterns ◽  
Mandibular Symphysis ◽  
Mandibular Growth ◽  
Gonial Angle ◽  
Vertical Growth ◽  
Lateral Cephalograms ◽  
Horizontal Growth ◽  
Vertical Growth Pattern

Mandibular growth pattern (MGP) prediction plays an important role in orthodontic treatment planning. This study sought to assess the mandibular symphyseal width in adolescents with different mandibular growth patterns (MGPs) so as to see whether a correlation exists. This study was conducted on 90 lateral cephalograms of patients aged between 10 and 16 years. The subjects were divided into normo-divergent, hypodivergent and hyperdivergent subgroups based on the gonial angle. The symphyseal measurement included width or depth of the mandibular symphysis according to Akietal study. He suggested that a mandible with anterior growth direction was associated with a large depth of the symphysis. In contrast, a mandible with a posterior growth direction was associated with a small depth of symphysis. To assess the correlation between mandibular symphyseal width and mandibular growth pattern, Pearson’s correlation test was done. Correlation is significant at the 0.01 level (2 tailed). A P-value which is less than 0.05 was considered statistically significant. The mandibular symphyseal width was found to be strongly associated with the MGP. It can be inferred from the results that in vertical growth pattern, as the gonial angle increases, symphyseal width decreases and in horizontal growth pattern, as the gonial angle decreases, symphyseal width increases. Also, in vertical growth pattern subjects, the mandibular symphyseal width is narrower. In contrast, in horizontal growth pattern subjects, the mandibular symphyseal width is wider.

scholarly journals Relationship of maxillary and mandibular effective base length, arch length and dental crowding in different vertical growth pattern

2022 ◽  
Vol 0 ◽  
pp. 1-7
Author(s):  
Priyanka Satra ◽  
Gauri Vichare ◽  
Veera Bhosale
Keyword(s):  
Growth Pattern ◽  
Inverse Correlation ◽  
Base Length ◽  
Clockwise Rotation ◽  
Gonial Angle ◽  
Vertical Growth ◽  
Lateral Cephalograms ◽  
Pre Treatment ◽  
Vertical Growth Pattern ◽  
Dental Crowding

Objectives: The objectives of the study were to assess, measure, and correlate the maxillary and mandibular effective base length, arch length to the amount of dental crowding in different vertical growth pattern patients. Materials and Methods: Sample comprising 100 pre-treatment lateral cephalograms and study models (age group – 16–25 years) was randomly selected. The sample was divided into two groups, that is, clockwise (50) and anticlockwise (50) rotation based on the measurement of the gonial angle. The gonial angle and maxillary and mandibular effective lengths were measured on pre-treatment lateral cephalograms. Dental crowding and arch length were measured on the pre-treatment dental casts. Intergroup comparisons of effective base length, arch length, and crowding were performed with unpaired t-tests. Correlations between effective base length, arch length, and dental crowding were examined by means of Pearson’s correlation coefficient (P < 0.05). Results: Subjects with clockwise rotation significantly had more mandibular dental crowding and significantly decreased mandibular arch length compared to the anticlockwise group. An inverse correlation was found between maxillary and mandibular effective base length, arch length, and dental crowding while a positive correlation was found between maxillary and mandibular base length and arch length in both the groups. Conclusion: Clockwise rotation of the mandible along with skeletal and dental factors such as decreased effective base lengths and arch length, respectively, constitutes an important factor leading to dental crowding.

scholarly journals Comparison of Association between Cervical Spine and Face in Subjects with Vertical and Horizontal Growth Pattern: An in vitro Study using Lateral Cephalogram

2016 ◽  
Vol 7 (2) ◽  
pp. 73-77 ◽  
Author(s):  
Sunita Shrivastav ◽  
Deoashish D Gupta ◽  
Priyanka Niranjane ◽  
Narendra Sharma ◽  
Rakesh Nathani
Keyword(s):  
Cervical Spine ◽  
Growth Pattern ◽  
Cervical Vertebrae ◽  
In Vitro Study ◽  
Lateral Cephalogram ◽  
Average Growth ◽  
Gonial Angle ◽  
Horizontal Growth ◽  
Vertical Growth Pattern

ABSTRACT Purpose The purpose of this study was to analyze and comparethe association between cervical spine and face in subjects with vertical and horizontal growth pattern using lateral cephalogram. Materials and methods Lateral cephalograms of 75 subjects between ages of 18 and 35 years were taken and analyzed. The study sample was divided into three groups of 25 individuals each; i.e., vertical growth pattern (gonial angle > 125°); horizontal growth pattern (gonial angle < 121°); and control group with average growth pattern (gonial angle 123° ± 2.5°). The relation between upper cervical vertebrae and face was compared between three groups by taking linear measurements. Results A statistically significant difference was observed in vertical dimensions of second cervical vertebra when it was correlated with anterior cranial base, maxilla and mandible in adults having horizontal and vertical growth pattern as compared to individuals with average growth pattern. Linear vertical measurements between maxilla to cervical spine and mandible to cervical spine were less in horizontal growth pattern as compared to vertical and average growth pattern. The p-value of SCV2—0.001, GoCV2—0.405, and PmCV2—0.001 showed significant results within intergroups. Conclusion It can be concluded that there exists an association between the morphology of the cervical vertebrae and the vertical and horizontal skeletal growth patterns. How to cite this article Gupta DD, Niranjane P, Sharma N, Shrivastav S, Kamble RH, Nathani R. Comparison of Association between Cervical Spine and Face in Subjects with Vertical and Horizontal Growth Pattern: An in vitro Study using Lateral Cephalogram. World J Dent 2016;7(2):73-77.

TO COMPARE THE EFFECTIVENESS OF NEBULISATION WITH ADRENALINE, 3% HYPERTONIC SALINE AND NORMAL SALINE IN BRONCHIOLITIS IN CHILDREN OF 2 TO 24 MONTHS OF AGE BASED ON CLINICAL SEVERITY SCORE AND NEBULISATION FREQUENCY.

2021 ◽  
Vol 5 (2) ◽  
Author(s):  
Priyanka Jain ◽  
Rakesh Jain
Keyword(s):  
Hypertonic Saline ◽  
Normal Saline ◽  
Mean Difference ◽  
Clinical Severity ◽  
Research Centre ◽  
P Value ◽  
College Hospital ◽  
Mean Values ◽  
Significant Difference ◽  
The Mean

Background & Method: We conducted a double blinded study at Index Medical College Hospital & Research Centre, Indore. The sample size was determined to be minimum of 120 cases as based upon previous years admission due to acute bronchiolitis. Initially, 146 cases were included in the study out of which 23 cases dropped out of the study after giving consent by guardian for participation in the study as they left against medical advice from the hospital. Result: The mean difference of CSS between 0 minutes to 60 minutes of nebulisation between groups in all cases was 0.4 ± 0.6, between 60 minutes and 4 hours was 0.8 ± 0.6, between 4 to 8 hours was 0.7 ± 0.6, between 8-12 hours was 0.6 ± 0.4, between 12-24 hours was 1.6 ± 0.9 and between 24-48 hours was 1.9 ± 0.9.The mean values and resultant p-value of ANOVA of various nebulising agents used for improvement in CSS shows significant association between various nebulising agents used along with improvement in CSS at the end of assessment at 48 hours of treatment. Conclusion: This study was conducted to establish the efficacy of each nebulisation agent (i.e.  adrenaline, 3% hypertonic saline and normal saline) currently used and compare the outcomes as there is not enough evidence amongst Indian population on level of efficacy of each drug in causing improvement in symptoms and signs in various severities of bronchiolitis in early childhood. Comparison of significant improvement in mean difference in CSS at various intervals in all cases compared between groups by post hoc test revealed non-significant difference (p-value 0.700) between 3% hypertonic saline and normal saline. Keywords: nebulisation, adrenaline, bronchiolitis & clinical.

scholarly journals Influence of Vertical Facial Growth Pattern on Herbst Appliance Effects in Prepubertal Patients: A Retrospective Controlled Study

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Maria Rita Giuca ◽  
Marco Pasini ◽  
Sara Drago ◽  
Leonardo Del Corso ◽  
Arianna Vanni ◽  
...  
Keyword(s):  
Growth Pattern ◽  
Class Ii ◽  
Growth Patterns ◽  
Response To Treatment ◽  
Controlled Study ◽  
Class Ii Malocclusion ◽  
Facial Growth ◽  
Herbst Appliance ◽  
Lateral Cephalograms ◽  
Vertical Growth Pattern

Introduction. The Herbst device is widely used for correction of class II malocclusions; however, most of the researches carried out on the Herbst appliance in literature do not take into account patients with a different mandibular divergence. The aim of this study was to investigate the effects of Herbst on dental and skeletal structures and to evaluate possible influence of vertical facial growth patterns. Methods. A retrospective study was conducted on lateral cephalograms of 75 growing patients (mean age: 9.9 ± 1.9 years) with class II malocclusion treated with Herbst. Subjects were divided into 3 groups using the mandibular divergence index (SN and GoMe angle). Cephalometric parameters were evaluated using the modified SO (sagittal occlusion) Pancherz’s analysis. A statistical analysis was conducted to evaluate differences among groups using ANOVA. Results. Our study showed differences in response to treatment depending on patient’s facial vertical growth pattern. Cranial base angle and mandibular rotation were significantly different (p<0.05) between hypodivergent patients and normodivergent patients and between hypodivergent and hyperdivergent subjects. Conclusion. Hypodivergent patients increased their mandibular divergence during treatment to a greater extent than normodivergents; moreover, hyperdivergent patients exhibited a decreased mandibular divergence at the end of the treatment.

scholarly journals A profile and treatment outcome of seasonal hyper-acute panuveitis

1970 ◽  
Vol 2 (1) ◽  
pp. 35-38 ◽  
Author(s):  
E Shrestha
Keyword(s):  
Visual Acuity ◽  
Medical Treatment ◽  
Visual Outcome ◽  
P Value ◽  
Fisher Exact Test ◽  
Mean Values ◽  
Exact Test ◽  
Pediatric Age Group ◽  
Significant Difference ◽  
The Mean

Introduction: Seasonal hyper-acute panuveitis (SHAPU) is a sight-threatening disease and its management is challenging. Objective: To study the profile and evaluate the visual outcome of the patients of clinicallydiagnosed cases of SHAPU after treatment. Subjects and methods: A retrospective interventional hospital-based study was carried out involving 21 subjects with clinically-diagnosed SHAPU. The data were retrieved from the record section of the hospital and analyzed. The variables studied were demographic pattern, clinical condition, duration of presentation and visual acuity before and after the treatment. Statistics: The data were analyzed using Epi Info version 2000. Percentage prevalence, mean values with standard deviation, relative risk, 95% CI and p value were calculated. P value of < 0.05 was considered to be significant. Results: Among the 21 cases, the numbers of male and female were 11 (52.4 %) and 10 (46.7 %) respectively. A comparative analysis of gender in children and adults did not show any significant difference (RR=0.47, 95% CI = 0.22 - 1.01, Fisher exact test: p = 0.14). The mean for all ages was 7 ± 12.68 years, while the mean age in pediatric cases was 4.5 ± 3.91 years. Thirteen (61.9%) cases occurred in children below fifteen years. Fifteen (71.4 %) cases reported during September and October. Presenting visual acuity of all cases was less than 3/60. All of them received medical treatment. By the end of the 4th week, seven (33.3 %) patients regained vision to 6/18. Conclusion: SHAPU is more prevalent in pediatric age group. It is equally prevalent among males and females. The visual acuity can improve with early medical treatment. Keywords: SHAPU; panuveitis; steroid; phthisis bulbi DOI: 10.3126/nepjoph.v2i1.3702 Nep J Oph 2010;2(1) 35-38

scholarly journals A novel prediction of simulated fluid responsiveness by echocardiography assessment of tricuspid annulus tissue velocity with passive leg raising

2019 ◽  
Vol 27 (5) ◽  
pp. 270-276
Author(s):  
Erden Erol Ünlüer ◽  
Arif Karagöz ◽  
Serdar Bayata ◽  
Sibel Çatalkaya ◽  
Hüseyin Bozdemir
Keyword(s):  
Cardiac Output ◽  
Fluid Responsiveness ◽  
Vital Signs ◽  
Peak Systolic Velocity ◽  
Passive Leg Raising ◽  
Tricuspid Annulus ◽  
Mean Values ◽  
Before And After ◽  
The Mean ◽  
Level Of Significance

Background: Fluid responsiveness can be predicted by the effect of passive leg raising on cardiac output. Objectives: This research aimed to compare the changes in cardiac output and the peak systolic velocity values of Tricuspid annulus velocity at the free wall (S’) before and after passive leg raising in healthy volunteers. Methods: The study was approved by ethical commission. The desired sample size was 28, and 57 volunteers were included after they signed informed consent. The first measurements, including vital signs, S’, and cardiac output, were taken with the participants lying supine and were performed in the morning after 12 h fast. The participants were then asked to lie in a semirecumbent position for 3 min. After 3 min, the head of the bed was lowered to the supine position and the participants’ legs were elevated at 45°. Secondary measurements were repeated in this position. The differences between vital signs, cardiac output, and S’ measurements before and after passive leg raising were statistically compared. The level of significance was set as p < 0.05. Results: The mean values of cardiac output and S’ before passive leg raising was 9.59 L/min and 11.57 cm/s, respectively; however, those increased to 11.44 L/min and 13.72 cm/s after passive leg raising. The average increases were 16.17% for cardiac output and 15.67% for S’. The changes of cardiac output and S’ were statistically significant. The changes of vital signs before and after passive leg raising were statistically insignificant. Conclusion: This study has demonstrated the concordance of rise in cardiac output with S’ change by passive leg raising in healthy subjects. Further studies are needed to validate the use of S’ values in critically ill subjects.

Thyroid Hormone Levels in Panic Disorder*

1987 ◽  
Vol 32 (6) ◽  
pp. 467-469 ◽  
Author(s):  
Vikram K. Yeragani ◽  
John M. Rainey ◽  
Robert Pohl ◽  
Aurelio Ortiz ◽  
Paula Weinberg ◽  
...  
Keyword(s):  
Panic Disorder ◽  
Thyroid Dysfunction ◽  
Clinical History ◽  
Panic Attacks ◽  
P Value ◽  
Mean Values ◽  
Trh Stimulation ◽  
History Of ◽  
The Mean ◽  
Normal Controls

A history of thyroid dysfunction has been reported in patients with phobic disorders. There is also evidence of a blunted TSH response to TRH stimulation in patients with panic disorder. In this study, values of T3, T4 and T7 were compared between 26 patients with panic attacks and 20 normal controls. Patients were diagnosed according to DSM-III criteria and those with a clinical history of thyroid dysfunction were excluded. Patients were not on any medication when the blood samples were drawn. The mean values of T3, T4 and T7 did not significantly differ between the two groups, suggesting no evidence of hypo or hyperthyroidism; however, the variance of distribution of T3, T4 and T7 values was significantly different between the two groups (Fmax values for T3: 2.55, p value < 0.05; T4: 3.15, p value < 0.01; T7: 2.55, p value < 0.05).

Panoramic radiographs

2005 ◽  
Vol 29 (2) ◽  
pp. 165-166 ◽  
Author(s):  
Elham S.J. Abu Alhaija
Keyword(s):  
Panoramic Radiograph ◽  
Growth Direction ◽  
Mean Values ◽  
Mandibular Growth ◽  
Panoramic Radiographs ◽  
Gonial Angle ◽  
Dental Examination ◽  
The Mean ◽  
Dental Professional ◽  
Distal Border

The aim of this study was to evaluate the potential of panoramic radiographs to measure mandibular inclination and steepness. Standardized panoramic and lateral cephalometric radiographs were taken for 95 subjects (46 females, mean age 12.4 ± 1.2 years; 49 males, mean age 12.1 ± 1.3 years). Mandibular inclination from panoramic radiograph was measured using gonial angle formed by the tangents of the lower border of the mandible and the distal border of the ascending ramus and the condyle. A correlation test was performed to check for similarity between the measurements. The mean values for the gonial angle were 127.3 ± 6.2 and 125.7 ± 6.5 degrees measured from the panoramic and cephalometric radiographs respectively. A high correlation between the measurements taken from both radiographs was found (r=0.83, P&lt;0.001). Panoramic radiographs are a useful tool for the measurement of gonial angle, which is an indicator of manibular steepness and subsequently mandibular growth direction. The ability to determine growth direction from the orthopantomogram will be useful because majority of dentists request an OPG for patients during routine dental examination. This will enable the dental professional to spot vertical growth problems using a readily available tool. J Clin Pediatr Dent 29(2): 165-166,2005

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