scholarly journals Evaluation of the Effect of Removable Maxillary Expanders on Facial Vertical Dimension

2021 ◽  
Vol 13 (2) ◽  
pp. 42-46
Author(s):  
Sepideh Soheilifar ◽  
Yousef AhmadPour ◽  
Sanaz Soheilifar ◽  
Ashkan Neshati ◽  
Pouria Teymouri
Keyword(s):  
Transverse Dimension ◽  
Cross Sectional Study ◽  
T Test ◽  
Vertical Dimension ◽  
Cross Sectional ◽  
Palatal Expansion ◽  
Mandibular Plane ◽  
Significant Difference ◽  
The Face ◽  
School Of Dentistry

Background: Palatal expansion is one of the most common types of orthodontic treatment, which is administered employing different appliances, and is used for the correction of posterior cross bite. This treatment can elevate the palatal cusp on the maxillary first molar, lead to the rotation of mandible, and increase the height of the lower third of the face. In some cases, the use of bite plane is suggested to avoid vertical dimension changes of the face. This study aimed to assess the effect of removable maxillary expanders on facial vertical dimensions. Methods: In this cross-sectional study, 68 patients referring to Hamedan School of Dentistry and being treated using removable maxillary expander with or without bite plane were examined. Pretreatment and post treatment cephalograms of the patients were analyzed by Dolphin Imaging Software 11.9 version, and the results from 5 cephalometric variables, namely the mandibular plane related to SN line, the angle of mandibular plane related to FH, Y axis, the maxillary plane angulation, as well as the lower facial height were calculated. Patient’s transverse dimension was measured by a caliper on the dental casts along the mesiobuccal cusp of maxillary first molars. Paired t test and independent t-test were adopted for carrying out data analysis. Results: There was no significant difference between the two groups in terms of age and sex at the beginning of treatment. However, maxillary plane angulation and Y axis changed significantly in group with bite plane. (P=0.034, P=0.007). The changes were less than 1.5 degrees. No significant difference was observed between the groups with or without bite plane regarding the changes of cephalometric variables during the treatment. The transverse dimension of the arch was increased significantly in both groups. The changes were similar in two groups. Conclusions: According to the results from this study, the presence of bite plane had no advantage over its absence. However, it seemed necessary to design a randomized clinical trial in this regard.

Self perceived oro-facial behaviour and malocclusion among young adults in Hyderabad city

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Dasari Tejaswini ◽  
Suhas Kulkarni ◽  
Dolar Doshi ◽  
Adepu Srilatha
Keyword(s):  
Gender Differences ◽  
Young Adults ◽  
Health Knowledge ◽  
Simple Random Sampling ◽  
Cross Sectional Study ◽  
Sampling Procedure ◽  
Cross Sectional ◽  
Significant Difference ◽  
The Face ◽  
The Impact

AbstractBackgroundAesthetic alterations in the face can be self-perceived and can affect quality of life in young adults.ObjectiveTo assess the impact of malocclusion on self- perceived oro-facial behaviour among young adults.MethodsA Cross sectional study was conducted among 638 young adults (aged 18–21 years) of Hyderabad city. One college from each of the five zones of the Hyderabad city (five colleges) were selected by simple random sampling procedure. A 21-item Oro-facial investment scale (OFIS) questionnaire assessing self-perceived oral health knowledge, attitude, practice and Dental Aesthetic Index (DAI) assessing the severity of malocclusion was used. Data were analysed with standard statistical software (SPSS, Statistical package for the social sciences, version 20.0). p < 0.05 was considered statistically significant.ResultsMales had higher mean scores for knowledge (2.90 ± 0.49) than females (2.73 ± 0.82) and was statistically significant (p = 0.002*). No statistically significant gender differences were found in relation to attitude and practice. Analysis of variance (ANOVA) showed that there was a significant difference in all the three scores (knowledge, attitude, practice) with respect to age, with significantly high score for knowledge and practice among 18 year old subjects (p = 0.0001*; p = 0.0003* respectively) and attitude among 21 year old subjects (p = 0.0049*). No statistically significant age, gender differences were found in relation to DAI scores. Upon correlation, DAI significantly and positively correlated with knowledge (p = 0.03*) and attitude (p = 0.0001*).ConclusionThis study has shown significant impact of malocclusion on the self-perceived oro-facial behaviour.

scholarly journals Association between normative and perceived esthetic results after treatment of mandibular retrognathism

2019 ◽  
Vol 48 ◽  
Author(s):  
Glauco André MARQUES ◽  
Carolina Carmo de MENEZES ◽  
Giovana Cherubini VENEZIAN ◽  
José Fernando Castanha HENRIQUES ◽  
Silvia Amélia Scudeler VEDOVELLO ◽  
...  
Keyword(s):  
Cross Sectional Study ◽  
T Test ◽  
Post Treatment ◽  
Patient Perception ◽  
Sectional Study ◽  
Cross Sectional ◽  
Facial Profile ◽  
Significant Difference ◽  
Mandibular Retrognathism ◽  
Mandibular Retrognathia

Abstract Introduction This cross-sectional study aimed to associate the normative cephalometric results of mandibular retrognathism treatment with patient perception on the esthetic improvement of facial profile. Objective this cross-sectional study aimed to associate the normative cephalometric results of mandibular retrognathism treatment with patient perception on the esthetic improvement of facial profile. Material and method The normative cephalometric results were obtained from lateral cephalometric radiographs of a sample of 24 Class II malocclusion patients in the pubertal growth spurt. Such patients were treated with a mandibular advancement device and evaluated by comparing pre- and post-treatment variables. The same radiographs were used to produce standardized black silhouettes that were randomly arranged. Patients were instructed to choose their preferred profile and indicate the changes perceived using a 7-point Likert scale. The data were compared with cephalometric results using a mixed-model methodology for time-repeated measures, Student’s t-test, and t-test for heterogeneous variances, at 5% significance level. Result A rate of 75% of patients preferred post-treatment silhouettes and changes were perceived regardless of the choice of either pre- or post-treatment profile. There was no significant difference between the cephalometric variables of the tracings that produced the silhouettes considered better or worse after the evaluation. Conclusion There was no association between the cephalometric results after treatment and the perception of esthetic improvement by patients treated for mandibular retrognathia.

scholarly journals PERBANDINGAN KECEPATAN BERJALAN PADA PASIEN NYERI PUNGGUNG BAWAH MEKANIK SUBAKUT DAN KRONIK MENGGUNAKAN TIMED UP AND GO TEST

e-CliniC ◽  
2015 ◽  
Vol 3 (1) ◽  
Author(s):  
Patricia Kalangi ◽  
Engeline Angliadi ◽  
Joudy Gessal
Keyword(s):  
Patient Group ◽  
Sampling Technique ◽  
Cross Sectional Study ◽  
T Test ◽  
Medical Rehabilitation ◽  
Gait Velocity ◽  
Timed Up And Go ◽  
Cross Sectional ◽  
Consecutive Sampling ◽  
Significant Difference

Abstract: The purpose of this research is to know and compare the gait velocity between subacute and chronic mechanical low back pain patients using Timed Up and Go Test at Installation Medical Rehabilitation Hospital Prof. Dr R.D. Kandou Manado. This research used observational analytic design with cross-sectional study. The samples choosen using consecutive sampling technique. Data obtained from the gait velocity measurement using Timed Up and Go Test conducted by researcher. From this research obtained the average gait velocity in patient group of subacute mechanical LBP is 18.92 seconds and the average gait velocity in patient group of chronic mechanical LBP is 17.17 seconds. The results of independent t-test hypothesis testing showed that there is a significant difference between gait velocity in subacute and chronic mechanical LBP patients (p = 0.034). Conclusion, gait velocity in chronic mechanical LBP patients is better than subacute mechanical LBP patients.Keywords: Gait velocity, mechanical LBP, TUG testAbstrak: Penelitian ini bertujuan untuk mengetahui dan membandingkan kecepatan berjalan antara pasien nyeri punggung bawah (NPB) mekanik subakut dan kronik menggunakan Timed Up and Go (TUG) Test di Instalasi Rehabilitasi Medik RSUP Prof. Dr. R.D. Kandou Manado. Penelitian ini menggunakan desain penelitian analitik observasional dengan pengamatan sewaktu (studi cross sectional). Penentuan sampel dilakukan dengan menggunakan teknik consecutive sampling. Data diperoleh dari hasil pengukuran kecepatan berjalan menggunakan Timed Up and Go Test yang dilakukan sendiri oleh peneliti. Dari penelitian ini diperoleh kecepatan berjalan rata-rata pada kelompok pasien NPB mekanik subakut adalah 18,92 detik dan kecepatan berjalan rata-rata pada pasien NPB mekanik kronik adalah 17,17 detik. Hasil uji hipotesis independent t-test menunjukkan bahwa terdapat perbedaan bermakna antara kecepatan berjalan pada pasien NPB mekanik subakut dengan kecepatan berjalan pada pasien NPB mekanik kronik (p = 0,034). Kesimpulan, kecepatan berjalan pasien NPB mekanik kronik lebih baik dibandingkan kecepatan berjalan pada pasien NPB mekanik subakut.Kata kunci: Kecepatan berjalan, NPB mekanik, tes TUG

scholarly journals Undergraduate information literacy self-efficacy: a cross-sectional study of Cambodian provincial universities

2021 ◽  
Vol 26 (3) ◽  
Author(s):  
Cheyvuth Seng ◽  
May Kristine Jonson Carlon ◽  
Jeffrey Cross ◽  
Keyword(s):  
Information And Communication Technologies ◽  
Undergraduate Students ◽  
Information Literacy ◽  
Self Efficacy ◽  
Communication Technologies ◽  
Cross Sectional Study ◽  
T Test ◽  
Cross Sectional ◽  
Significant Difference ◽  
Information And Communication

Introduction. This paper examines the information literacy self-efficacy of undergraduate students at provincial universities in Cambodia, and to determine whether there are significant differences in information literacy self-efficacy in terms of sex, academic year, faculty and university. Method. We adapted the information literacy self-efficacy skills survey by Kurbanoglu and administered to 1,009 undergraduate students at three public provincial universities to measure their confidence on information literacy. Analysis. Descriptive and inferential statistics using independent sample t-test (t-test) and analysis of variance (ANOVA) were used to analyse the responses. Results. The results indicated that the information literacy self-efficacy of provincial universities in Cambodia was low as the mean scores were lower than the midpoint value of the original scale. Significant differences were also observed across the faculties and universities. This study revealed no significant difference of information literacy self-efficacy between male and female students. However, significant difference was observed between universities due to the performance of infrastructures and supporting funds. Conclusions. The findings indicated that undergraduate students at the provincial universities in Cambodia exhibited low confidence in information literacy. Policy making on information and communication technologies should be well implemented to provide practical skills to students from first to fourth year.

scholarly journals The comparison between the length of vertical dimension of occlusion and the length of thumb on undergraduate Mongoloid students

2011 ◽  
Vol 23 (1) ◽  
Author(s):  
Goh Li Teng ◽  
Gantini Subrata ◽  
Rachman Ardan
Keyword(s):  
Proximal Phalanx ◽  
Leonardo Da Vinci ◽  
Vertical Dimension ◽  
Survey Method ◽  
Strong Correlations ◽  
Test Statistic ◽  
Cross Sectional ◽  
Significant Difference ◽  
The Face ◽  
Student’S T

The Thumb Rule of Leonardo da Vinci states that many proportions of the face show relationship with the length of thumb which is measured from the proximal tip of the proximal phalanx to the distal tip of the distal phalanx. Previous studies have shown that the length of the vertical dimension of occlusion (VDO) is similar to the length of thumb of the Caucasoid race. The purpose of this study is to determine whether the length of VDO have correlations with the length of thumb among those of the Mongoloid race. This study took a survey method with the analytical cross-sectional approach. A total of 80 students of Faculty of Dentistry who have fulfilled all population criteria were randomly chosen to measure the length of VDO and the length of the thumb. Results analyzed with Student's t-test statistic revealed that there was a significant difference between males and females in the length of VDO and the length of the thumb, however, there was no significant difference between the length of VDO and the length of the thumb. There were very strong correlations (P<0.05) between the length of VDO and the length of the thumb. As a conclusion, the length of thumb can be suggested as an objective method to determine the length of VDO in this population.

scholarly journals Comparison of Oral Stereognostic Proficiency Between New and Previous Complete Denture Wearers

2021 ◽  
Vol 12 (01) ◽  
pp. 8-12
Author(s):  
Saira Ibrahim ◽  
Moiza Ijaz ◽  
Ammara Sharafat ◽  
Samina Younis ◽  
Nida Mukhtar ◽  
...  
Keyword(s):  
Study Design ◽  
Armed Forces ◽  
Cross Sectional Study ◽  
Complete Denture ◽  
T Test ◽  
P Value ◽  
Older Individuals ◽  
Cross Sectional ◽  
Significant Difference ◽  
Proficiency Scores

Objective: To compare oral stereognostic proficiency scores between new and previous complete denture wearers. Study design and study settings: This cross-sectional study design was conducted at Armed Forces Institute of Dentistry, Rawalpindi. Methodology: Total 60 patients belonging to age group of 45–75 years were selected from the study setting. Oral stereognostic proficiency was recorded by using different oral stereognostic intra oral testing tools and scores were noted. Data analysis was done using SPSS (version 20) software. Independent sample t-test was used to compare the scores of new and old previous complete denture wearers. Effect modifier like gender was rectified by method of stratification. Post stratification independent sample t-test was applied and p value of 0.05 or less was considered to be significant. Results: The mean age of patients was 59.8+7.85 years. Previous complete denture wearers were found to have a higher value as compared to the new complete denture wearers. Significant difference between both groups according to age was found with older individuals having a lower stereognostic value than younger individuals. Conclusions: Oral stereognostic test is a dependable test to measure patients’ oral stereognostic perception which can help the dentist in better educating the patient in terms of his/her expectations regarding the prosthesis and in better understanding the limitations of the prosthesis

scholarly journals Knowledge and practices of recording and maintaining patients ‘dental records among private dental practitioners of Delhi, India

2021 ◽  
Vol 20 ◽  
pp. e214995
Author(s):  
Gurkiran Kaur ◽  
Abhishek Mehta ◽  
Aastha Sahani ◽  
Shradha Malik
Keyword(s):  
Cross Sectional Study ◽  
Chi Square ◽  
Cross Sectional ◽  
Dental Practitioners ◽  
Significant Difference ◽  
The Face ◽  
Chi Square Test ◽  
History Of ◽  
Dental Records ◽  
Study Participants

Proper recording and keeping dental records are an important part of any dental practice. It helps in improving patient care, has medico-legal importance and play significant role in human identification during mass disasters or criminal offences. Aim: To assess the knowledge and practices of recording and maintaining patients ‘records among private dental practitioners of Delhi, India. Methods: Data for this cross-sectional study was collected from 160 dentists of Delhi using a self-administered questionnaire. The face and content validity as well as reliability of questionnaire was tested before the final data collection. A single trained examiner collected all the necessary information via personal visits or google forms. Chi-square test was applied to check the statistically significant difference between the dichotomous independent variables with respect to study participants’ responses to the questionnaire. Results: The mean age of the study participants was 34.5 (SD 7.2) years.Digital method of recording patient’s data and x-ray storage was more prevalent than manual method among the study participants. Slightly more than 40% of the dentists were keeping patient’s records safe for a period of 6 to 10 years. Younger dentists with lesser years of practice were more explicit in recording and correcting patient records. Conclusion: Results of this study shows that private dental practitioners of Delhi are aware of medico-legal importance of dental records. Most of them were recording important findings and history of their patients. Dentists must be educated in two aspects namely correct method of recording and the ideal duration of storing their patients’ dental records.

Human permanent tooth sizes are associated with genes encoding oestrogen receptors

2020 ◽  
pp. 146531252095871
Author(s):  
Arthur S Cunha ◽  
Luiza Vertuan dos Santos ◽  
Samantha Schaffer Pugsley Baratto ◽  
Zerrin Abbasoglu ◽  
Jennifer Tsi Gerber ◽  
...  
Keyword(s):  
Genetic Polymorphisms ◽  
Oestrogen Receptor ◽  
Cross Sectional Study ◽  
Permanent Tooth ◽  
Permanent Teeth ◽  
Tooth Size ◽  
Oestrogen Receptors ◽  
Cross Sectional ◽  
Significant Difference ◽  
School Of Dentistry

Objective: To evaluate if genetic polymorphisms in the oestrogen receptor 1 ( ESR1) and oestrogen receptor 2 ( ESR2) genes encoded for oestrogen receptors alpha (ERα) and beta (ERβ) are involved in permanent tooth size. Design: Cross-sectional study. Setting: Orthodontic Clinic at School of Dentistry of Ribeirão Preto, University of São Paulo. Participants: A total of 108 orthodontic patients. Materials and Methods: Pre-treatment orthodontic records were evaluated. Dental casts were used to determine the maximum crown measurements of fully erupted permanent teeth in the mesiodistal dimensions. Second and third molars were not included in the analysis. Genomic DNA samples were used for the genotyping of four genetic polymorphisms: ESR1 (rs9340799 and rs2234693) and ESR2 (rs1256049 and rs4986938). The associations between tooth size and sex were evaluated using t test. The associations between tooth size and genotype were analysed with linear regression and adjusted by sex at an alpha of P⩽0.05. Results: Female patients presented smaller tooth size than male patients. A statistically significant difference was observed in almost all teeth ( P<0.05). The genetic polymorphisms in rs9340799, rs2234693, rs1256049 and rs4986938 were associated with some tooth sizes in both the maxilla and mandible ( P<0.05). Conclusion: This study provides evidence that genetic polymorphisms in ESR1 and ESR2 could be associated with tooth size in permanent teeth.

scholarly journals Prevalence of Dental Anxiety Among Patients Visiting Dental Institution- A Cross Sectional Study

2020 ◽  
Vol 5 (8) ◽  
pp. 935-938
Author(s):  
Dr. Srividhya. S ◽  
Dr. Saraswathi Gopal
Keyword(s):  
Treatment Plan ◽  
Dental Anxiety ◽  
Age Groups ◽  
Cross Sectional Study ◽  
T Test ◽  
Cross Sectional ◽  
Dental Procedures ◽  
Significant Difference ◽  
Common Problems ◽  
Spss Software

Aim and Objective: Anxiety exhibited by patients towards dental procedures are common problems experienced by many across the world. This study focuses on evaluating the dental anxiety among patients attending the outpatient clinics of Meenakshi Ammal Dental College and Hospital and its association with their age, gender, educational level. A total of 200 patients, aged 21–50 years were included in the study. A questionnaire comprising the Corah’s Dental Anxiety Scale was used to assess the level of dental anxiety. The data obtained was analyzed using SPSS software.  Results:. Independent t-test did not show significant variation among the age groups with respect to overall anxiety score (P≥ 0.05), however, it was reduced with increasing age. There was no significant difference was found by independent t-test between male and female groups and regarding previous dental visit (P ≥0.05). Regarding education level, there was no statistical difference between the groups (P > 0.05) Younger patients, female patients were associated with increased anxiety scores. The present study was done for better patient management and proper treatment plan development for dentally anxious patients

scholarly journals Vertical Dimension of Occlusion: A comparative study between Anthropometric and Knebelman’s craniometric methods

2021 ◽  
Vol 34 (1) ◽  
pp. 43-49
Author(s):  
Francisco Avila-Vásquez ◽  
Paúl Vergara-Sarmiento ◽  
Cristina Crespo-Crespo
Keyword(s):  
Tooth Wear ◽  
Cross Sectional Study ◽  
Temporomandibular Joint Disorders ◽  
Vertical Dimension ◽  
Sectional Study ◽  
Cross Sectional ◽  
Significant Difference ◽  
Masticatory System ◽  
Level Of Significance ◽  
Paired T Test

The masticatory system changes as time passes. The vertical dimension of occlusion (VDO) undergoes alterations due to temporomandibular joint disorders which in turn may be caused by related muscle modifications or pathological tooth wear. There are many methods to measure VDO. Among these, the anthropometric method and Knebelman’s craniometric method have been shown to be the most closely related to facial biotype. The aim of this study was to compare data recorded with those two methods. A descriptive cross-sectional study was performed with a total 200 patients. A vernier caliper was used to measure facial landmarks. Results were analyzed using paired t-test, setting the level of significance at p<0.05. There was no significant difference between the two methods but Knebelman’s method had less variability. Results suggest that Knebelman’s method should provide more reliability for determining VDO in all the facial biotypes studied.

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