scholarly journals Differences of temporomandibular joint condyle morphology with and without clicking using digital panoramic radiograph

2016 ◽  
Vol 28 (3) ◽  
Author(s):  
Farina Pramanik ◽  
Ria Noerianingsih Firman ◽  
Belly Sam
Keyword(s):  
Temporomandibular Joint ◽  
Temporomandibular Disorder ◽  
Panoramic Radiograph ◽  
Panoramic Radiographs ◽  
Descriptive Research ◽  
Significant Difference ◽  
Morphologic Alteration ◽  
Dental Hospital ◽  
The Mean ◽  
Processus Condylaris

Introduction: Clicking is the most common clinical symptom in patients with Temporomandibular Disorder (TMD). Lacking attention by either the patient or dentist, many patients were found to have suffered from morphologic alteration of the condyles seen in the panoramic radiograph inadvertently. The purpose of the study was to determine the differences of condyle morphology of the Temporomandibular Joint (TMJ) with and without the existence of clicking by means of digital panoramic radiographs. Methods: This study was based on an analytic descriptive research, whereas subjects are digital panoramic radiographs taken from clicking and non-clicking patients at the Radiology Installation of Dental Hospital Universitas Padjadjaran. 16 samples of each group were chosen in a non-random purposive sampling manner. Results: The research showed the mean of condyle morphology, HOC height  on clicking (6.31 mm) was shorter than the non clicking (7.63 mm), the width of HOC on clicking (10.38 mm) was higher than the non clicking (10.22 mm) and height of the processus condylaris on clicking (19.70 mm) was shorter than non clicking (20.04 mm). Ratio of the high of HOC, width of HOC and high of processus condylaris were 12.13 (clicking), and 12.63 (non-clicking). Conclusion: There was no significant difference between the morphology of the TMJ condyle between clicking and not clicking group, except on high of HOC.

scholarly journals Growth-Related Differences in Maximum Laterotrusion and Retrusion between Children and Adults

2009 ◽  
Vol 79 (2) ◽  
pp. 265-270 ◽  
Author(s):  
Claudia A. Reicheneder ◽  
Peter Proff ◽  
Uwe Baumert ◽  
Tomas Gedrange
Keyword(s):  
Temporomandibular Joint ◽  
Null Hypothesis ◽  
Population Based ◽  
Adult Group ◽  
Population Based Study ◽  
Significant Difference ◽  
Left And Right ◽  
The Mean ◽  
The Right

Abstract Objective: To test the null hypothesis that there are no differences between children and adults in maximum laterotrusion and maximum retrusion on the right and left sides. Materials and Methods: This population-based study included 81 randomly selected children between the ages of 6 and 10 years and 67 adults. Kinematic variables were measured with the ultrasonic JMA-System for registration. Results: The mean maximum laterotrusion of the children's group (10.6 ± 1.5 mm on the left, 11.0 ± 1.7 mm on the right) was significantly smaller than that of the adult group (11.7 ± 2.0 mm on the left, 12.2 ± 1.7 mm on the right). The maximum laterotrusion of the children's group corresponded to about 90% on the left and right sides of that of the adult group. The mean maximum retrusion of the children's group was significantly bigger than that of the adult group. There, the adult values corresponded to 66.7% on the left and 50% on the right side of the children's values. No significant difference in maximum laterotrusion and retrusion was noted on the right and left sides, and no significant differences according to gender specificities were observed in either group. Conclusions: The hypothesis is rejected. In development of the temporomandibular joint, maximum laterotrusion on the right and left sides increases significantly with age, and maximum retrusion decreases significantly with age.

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<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

scholarly journals Leisure Time Habits of BEd Students in Sagaing University of Education

2021 ◽  
Vol 1 (1) ◽  
pp. 59-64
Author(s):  
Yar Zar Chit
Keyword(s):  
Leisure Time ◽  
Leisure Activities ◽  
Male Students ◽  
Survey Method ◽  
Mean Values ◽  
Descriptive Research ◽  
Significant Difference ◽  
The Mean ◽  
Questionnaire Surveys ◽  
Support Students

This study investigated the leisure time habits of BEd students from Sagaing University of Education in Myanmar. A total of 400BEd students in Sagaing University of Education participated in this study. Descriptive research design and survey method were used.  “Leisure time: activities and satisfaction” section from “ISSP 2007 Leisure Time and Sports Questionnaire” was adapted and used to collect the required data. Findings from questionnaire surveys revealed that students commonly used their leisure time for relaxation and entertainment (67.25%). It was also found that there was a significant difference in students’ leisure time habits by gender at  =0.01 level. Moreover, by four habits, male students used more leisure times for physical, emotional, and social activities because their mean values are significantly different at  =0.01 level. In the total mean scores, since second-year students’ mean scores are highest, they used mostly their leisure times among students (Mean=37.38). The mean and percentage of “to relax” are 2.82 and 16.40% and so it is highest among reasons. Moreover, the mean and percentage of “lack of time due to school” are 1.76 and 14.75% and so it is highest among limitations. This study hopes to give some ideas to support students’ leisure activities.

scholarly journals Cervical and scapular instability in subjects with temporomandibular disorder

2020 ◽  
pp. 1-5
Author(s):  
Maryllian de Albuquerque Vieira ◽  
Maria das Graças Rodrigues de Araújo ◽  
Gabriel Barreto Antonino ◽  
Angélica da Silva Tenório ◽  
Maria das Graças Paiva ◽  
...  
Keyword(s):  
Temporomandibular Joint ◽  
Temporomandibular Disorder ◽  
Neck Disability Index ◽  
Shoulder Girdle ◽  
Masticatory Muscles ◽  
Control Group ◽  
Cervical Instability ◽  
Mobility Data ◽  
Significant Difference ◽  
Neck Disability

Background: Temporomandibular disorder (TMD) is a set of disorders involving the masticatory muscles, the temporomandibular joint (TMJ) and/or the associated structures. Objectives: To evaluate the occurrence of cervical and scapular instability in subjects with TMD. Methods: A total of 22 patients participated in the study, being 11 of them with TMD, selected using the RDC/TMD criteria, and 11 in the control group. The stabilization capacity of the neck muscles was evaluated through StabilizerTM and the muscles of the shoulder girdle through specific tests. Cervical mobility data from both groups were provided using the accelerometer while for cervical disability was used the Neck Disability Index (NDI) questionnaire. Results: Cervical instability was higher in the TMD group (20.36 ± 3.2) than in the control group (28.54 ± 0.8), revealing significant difference (p= 0.03). The highest percentages of scapular stabilization tests were found in subjects with TMD, (n= 9; 81.81%) when compared with control subjects (n= 5; 45.45%). The NDI results showed that the TMD group presented mild cervical incapacity (11.18 ± 2) and the control presented no disability (2.27 ± 0.4; p= 0.001). Conclusion: Cervical disability, and cervical and scapular instability were more frequent in subjects with TMD.

scholarly journals Zygomatic Air Cell Defect: Prevalence and Characteristics in Dental Outpatient Population

2012 ◽  
Vol 2 (3) ◽  
pp. 69-72 ◽  
Author(s):  
Rohit B Gadda ◽  
Rohini Salvi ◽  
Neha Anil Patil
Keyword(s):  
Surgical Treatment ◽  
Temporomandibular Joint ◽  
Radiographic Appearance ◽  
Panoramic Radiographs ◽  
Bilateral Involvement ◽  
Study Population ◽  
The Mean ◽  
Zygomatic Air Cell Defect ◽  
Cell Defect

ABSTRACT Aim To determine the prevalence, radiographic appearance and characteristics of patients with zygomatic air cell defect (ZACD). Materials and Methods Routine panoramic radiographs of 400 patients who were visited the dental outpatient of our institute were examined retrospectively. Results Out of 400 study subjects, ZACD was found in 11, giving an overall prevalence of 2.75%. Out of 11 ZACD subjects, six were males and five were females. The mean age of subjects with ZACD was 33.9 (±15) years and a range of 18 to 65 years. The bilateral involvement of ZACD was seen in only one subject. Conclusion The overall prevalence of ZACD is relatively low in present study population. Knowledge of ZACD may be helpful in interpreting panoramic radiographs, in planning surgical treatment of the temporomandibular joint and in understanding the spread of pathological processes into the joint. How to cite this article Gadda R, Patil NA, Salvi R. Zygomatic Air Cell Defect: Prevalence and Characteristics in Dental Outpatient Population. J Contemp Dent 2012;2(3):69-72.

scholarly journals FROM HOME TO DORM: VIEWS ON ITS INFLUENCE

2021 ◽  
Vol 6 (40) ◽  
pp. 99-112
Author(s):  
Marilyn Manson Dioso ◽  
Aina B. Iglesia
Keyword(s):  
Socioeconomic Status ◽  
Academic Performance ◽  
Positive Impact ◽  
Weighted Mean ◽  
Male And Female ◽  
Descriptive Research ◽  
Significant Difference ◽  
Boarding House ◽  
The Mean ◽  
Middle Socioeconomic Status

This study aimed to determine the views of students on the influences of living in a dormitory/boarding house on their academic performance. The study tested to prove if there is a significant difference present in the views of fifty-two (52) respondents on the influences of living in a dormitory on academic performance between male and female, Course A and Course B, and the socioeconomic status. This employed a descriptive research design with quantitative. The 2-tailed t-test, two-way ANOVA, and weighted mean were utilized to analyze and statistically treat the data. Findings showed that the mean grade of the respondents is 1.78568462 which is very good. It concluded that living in a dormitory/boarding house does not adversely affect the students’ academic performance. It brought about more of a positive impact on their studies than the negative. They performed better when living independently rather than with their families. Regardless of sex, the respondents manifested similar views on the influence of living in a dormitory/boarding house on academic performance. In terms of the courses, Course B respondents have better views on the influence of living in a dormitory/boarding house on academic performance. While, in socioeconomic status, the respondents with high socioeconomic status have better views compared to those with low and middle socioeconomic status.

The Prevalence of Temporomandibular Disorder in Patients Referred for Orthodontic Assessment

1996 ◽  
Vol 23 (3) ◽  
pp. 261-265 ◽  
Author(s):  
D. G. Morrant ◽  
G. S. Taylor
Keyword(s):  
Temporomandibular Joint ◽  
Clinical Examination ◽  
Temporomandibular Disorder ◽  
Patient Age ◽  
Temporomandibular Dysfunction ◽  
Examination Protocol ◽  
Significant Relationships ◽  
Patient Âgé ◽  
The Mean

A total of 301 unselected orthodontic referrals were assessed for temporomandibular disorder, using a standardized questionnaire and clinical examination protocol. The mean age of the patients was 13·4 years. Over one-third of the 301 patients were found to exhibit at least one sign of TMD, and two-thirds had a mandibular dysfunction index (MDI) score of 1, 2 or 3, indicating mild to moderate. dysfunction. Only five patients were found to have severe temporomandibular dysfunction. Statistically significant relationships were found between patient age and mandibular opening, and temporomandibular joint noises. No relationship was found between signs detected by clinical examination and symptoms reported by the patients.

scholarly journals Bentuk dan posisi kondilus sebagai marker pada Temporomandibular Disorder (TMD) melalui radiografi panoramik

2020 ◽  
Vol 4 (3) ◽  
pp. 91
Author(s):  
Khamila Gayatri Anjani ◽  
Aga Satria Nurrachman ◽  
Fadhlil Ulum Abdul Rahman ◽  
Ria Noerianingsih Firman
Keyword(s):  
Literature Review ◽  
Soft Tissues ◽  
Temporomandibular Disorder ◽  
Panoramic Radiograph ◽  
Lateral View ◽  
Articular Disc ◽  
Panoramic Radiographs ◽  
3 Dimensional ◽  
Tissue Abnormalities ◽  
Condyle Movement

Objectives: The purpose of writing this literature review is to describe the condyle shape and position parameters in panoramic radiographs to be used as markers in diagnosing a TMD case. Literature Review: There are several classifications of both normal and pathological condyles in terms of panoramic radiographs, however these require more detailed observation. Panoramic radiographs that are only two-dimentional and only performed when the teeth are biting edge to edge so that they only show the position of the condyle movement and the shape of the condyle from the lateral view. Panoramic radiograph also have limitations in imaging soft tissues such as articular disc which are vital anatomy in analyzing a TMD case. Conclusion: Assessment of the shape and position of the condyles on a panoramic radiograph can be used as an early diagnosis of TMD. 2-dimensional modalities such as TMJ conventional lateral and frontal or 3-dimensional modalities such as CBCT or CT can be used for further assessment of a TMD case, while MRI or ultrasound can be used for soft tissue abnormalities.

scholarly journals The Effects of Botulinum Toxin-A Injection on Lateral Pterygoid Muscle in Patients with Painful Temporomandibular Joint Click: A Randomized Clinical Trial Study

2021 ◽  
Author(s):  
Fahimeh Rezazadeh ◽  
Negin Esnaashari ◽  
Azita Azad ◽  
Sara Emad
Keyword(s):  
Botulinum Toxin ◽  
Temporomandibular Joint ◽  
Repeated Measures ◽  
Botulinum Toxin A ◽  
Temporomandibular Disorder ◽  
Medical Science ◽  
Case Series ◽  
Pain Severity ◽  
Toxin A ◽  
Significant Difference

Abstract Background: The aim of this study was to investigate the effect of Botulinum toxin-A (BTX-A) injection in lateral pterygoid (LP) muscle and analyze the efficacy of this treatment modality in reducing Temporomandibular disorder (TMD) symptoms. TMD is the main cause of nondental pain in the orofacial area. The most common symptoms of temporomandibular disorder are joints pain and sound and limitation of jaw function. Botulinum toxin (BTX) injection in LP temporarily paralysesis the muscle. BTX injection is considered as a potential treatment for TMD, due to its pain relieving characteristic and its ability to reduce muscle activity. However, these evidences are mostly case series and more studies are required to prove its efficacy. Methods: Thirty-eight patients (19 women and 19 men, mean age: 26.53 years) with painful unilateral temporomandibular joint click and LP muscle tenderness entered the study. They were divided into two groups; one received extraoral Botax injection in LP muscle, and the other was injected by placebo. Pain severity, jaw’s range of movement, click severity and Helkimo-Index, were taken recorded at first and also in follow upin first visit and in one week, one month and three months after intervention. Data were analyzed using Repeated measures ANOVA and t-test.Results: The result showed that click severity was not significantly different between BTX and placebo groups (p=0.07). Pain and Helkimo index were decreased significantly in BTX group (p=0.00 and P=0.006 respectively); however, there was no significant difference when compared between the two groups (P=0.22 and p=1 respectively). There was a significant difference in lateral movements between the groups (p=0.00) but not in protrusion movement (p=0.095).Conclusions: It can be concluded that although some studies state that BTX injection can make the click sound disappear, in this study we did not find a significant difference between two groups. Furthermore, our results showed that click and pain severity were decreased, but the difference was not statistically significant. Therefore, further studies with more dosage of BTX and higher participants seem to be necessary.Trial registration: The local Ethics Committee of Shiraz University of Medical Science approved this research under Ethics code: IR.SUMS.REC. 2018/10/01 and IRCT number: IRCT20130521013406N3.

scholarly journals TMD symptoms and vertical mandibular symmetry in young adult orthodontic patients in North Sumatra, Indonesia: a cross-sectional study

F1000Research ◽  
2018 ◽  
Vol 7 ◽  
pp. 697 ◽  
Author(s):  
Ervina Sofyanti ◽  
Trelia Boel ◽  
Benny Soegiharto ◽  
Elza I. Auerkari
Keyword(s):  
Young Adult ◽  
Temporomandibular Joint ◽  
Temporomandibular Disorder ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
Cross Sectional ◽  
Mandibular Asymmetry ◽  
Significant Difference ◽  
Orthodontic Patients ◽  
North Sumatra

Background: Temporomandibular joint disorder (TMD) includes symptoms of pain and dysfunction in the muscles of mastication and the temporomandibular joint. Differences in vertical condylar height, observed in the assessment of mandibular asymmetry, is a structural alteration that represents a risk factor for TMD. The study aimed to evaluate the association between TMD symptoms and vertical mandibular symmetry in young adult orthodontic patients in North Sumatra, Indonesia.  Methods: The cross-sectional study included 18-25-year-old (mean ± SD, 21.9 ± 2.0 years) old orthodontic patients admitted to the Dental Hospital of Universitas Sumatera Utara, Medan, between June 2016 and March 2017. Vertical mandibular asymmetry was assessed from all 106 subjects using Kjellberg’s technique from pre-treatment panoramic radiographs. The TMD symptoms were assessed by structural interviews using modified questionnaires based on Temporomandibular Disorder Diagnostic Index and Fonseca’s Anamnestic Index. Results: Of the 106 subjects, 26 (24.5% of the total) with vertical mandibular symmetry and 39 (36.8%) with vertical mandibular asymmetry were positive for TMD symptoms. By contrast, 17 patients (16.0% of the total) with vertical condylar symmetry and 24 patients (22.6%) with vertical mandibular asymmetry were regarded negative for TMD symptoms. There was no significant difference (p=0.520) in TMD symptoms based on vertical mandibular symmetry. Conclusion: The results from this studied Sumatran population indicate that there are common TMD symptoms in young adult orthodontic patients, but there is no significant association between vertical mandibular asymmetry and TMD symptoms. Further study on the development of TMD, mandibular asymmetry and treatment planning for growing patients is suggested, using longitudinal and transitional approaches.

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