Evaluation of the Bergen Cephalometric Norms: A Radiological and Statistical Appraisal

1987 ◽  
Vol 14 (2) ◽  
pp. 95-100
Author(s):  
Seppo Järvinen
Keyword(s):  
Additional Data ◽  
Normal Values ◽  
Young Male ◽  
Class I ◽  
Population Estimates ◽  
Clinical Use ◽  
Original Sample ◽  
Orthodontic Patients ◽  
Cephalometric Measurements

The normal values of the angular radiographic cephalometric measurements in the Bergen analysis, the so called orthognathic combinations, were compared with the associations between these measurements obtained from two population samples. The original sample of the study consisted of 55 untreated orthodontic patients aged 7–14 years and with Angle's Class I malocclusion. Additional data were obtained from Solow's study on young male adults. The comparison indicated differences between the Bergen acceptable combinations and the population estimates. The Bergen norms seemed to be constructed partly on the basis of solely topographical correlations. Therefore, it can he claimed that Bergen cephalometric norms are more artificial than biological, because of which the clinical use of the Bergen analysis requires special caution.

Computer Assistance in the Clinical Investigation of Pulmonary Function Studies

1973 ◽  
Vol 12 (02) ◽  
pp. 102-107 ◽  
Author(s):  
D. J. Protti ◽  
Nancy Craven ◽  
A. Naimark ◽  
R. M. Cherniack
Keyword(s):  
Information System ◽  
Pulmonary Function ◽  
Additional Data ◽  
Normal Values ◽  
Clinical Investigation ◽  
Regression Equations ◽  
Beneficial Effects ◽  
Computer Assistance ◽  
Manual Methods

A previously described comprehensive respiratory information system (CRIS) has been changed to introduce new spirometric tests which are sensitive to minor abnormalities, revise on the basis of additional data the regression equations which define normal values to various parameters of pulmonary function and refine the system’s interpretation scheme. The beneficial effects of transferring the system from a large IBM 360/65 to a small CDC 1700 are presented. An analysis of the costs of processing routine pulmonary function studies reveals that a 40°/o saving is realized when a computer is used in comparison to the use of the usual manual methods.

scholarly journals Environmental Cadmium Exposure and Dental Indices in Orthodontic Patients

Healthcare ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 413
Author(s):  
Hui-Ling Chen ◽  
Jason Chen-Chieh Fang ◽  
Chia-Jung Chang ◽  
Ti-Feng Wu ◽  
I-Kuan Wang ◽  
...  
Keyword(s):  
Cadmium Concentration ◽  
Class Ii ◽  
Cadmium Exposure ◽  
Class I ◽  
P Value ◽  
Tooth Decay ◽  
Class Iii ◽  
Orthodontic Patients ◽  
Urine Cadmium ◽  
The Mean

Background. Previous studies have shown that environmental cadmium exposure could disrupt salivary gland function and is associated with dental caries and reduced bone density. Therefore, this cross-sectional study attempted to determine whether tooth decay with tooth loss following cadmium exposure is associated with some dental or skeletal traits such as malocclusions, sagittal skeletal pattern, and tooth decay. Methods. Between August 2019 and June 2020, 60 orthodontic patients with no history of previous orthodontics, functional appliances, or surgical treatment were examined. The patients were stratified into two groups according to their urine cadmium concentrations: high (>1.06 µg/g creatinine, n = 28) or low (<1.06 µg/g creatinine, n = 32). Results. The patients were 25.07 ± 4.33 years old, and most were female (female/male: 51/9 or 85%). The skeletal relationship was mainly Class I (48.3%), followed by Class II (35.0%) and Class III (16.7%). Class I molar relationships were found in 46.7% of these patients, Class II molar relationships were found in 15%, and Class III molar relationships were found in 38.3%. The mean decayed, missing, and filled surface (DMFS) score was 8.05 ± 5.54, including 2.03 ± 3.11 for the decayed index, 0.58 ± 1.17 for the missing index, and 5.52 ± 3.92 for the filled index. The mean index of complexity outcome and need (ICON) score was 53.35 ± 9.01. The facial patterns of these patients were within the average low margin (26.65 ± 5.53 for Frankfort–mandibular plane angle (FMA)). There were no significant differences in the above-mentioned dental indices between patients with high urine cadmium concentrations and those with low urine cadmium concentrations. Patients were further stratified into low (<27, n = 34), average (27–34, n = 23), and high (>34, n = 3) FMA groups. There were no statistically significant differences in the urine cadmium concentration among the three groups. Nevertheless, a marginally significant p-value of 0.05 for urine cadmium concentration was noted between patients with low FMA and patients with high FMA. Conclusion. This analysis found no association between environmental cadmium exposure and dental indices in our orthodontic patients.

scholarly journals Prevalence of Cross Bite Among the Orthodontic Patients in Bangabandhu Sheikh Mujib Medical University

2015 ◽  
Vol 26 (1) ◽  
pp. 9-12
Author(s):  
Naznin Sultana ◽  
Gazi Shamim Hassan ◽  
Digamber Jha ◽  
Towhida Nashrin ◽  
Lutfun Nahar ◽  
...  
Keyword(s):  
Orthodontic Treatment ◽  
Class I ◽  
Dental Arch ◽  
Diagnostic Model ◽  
Class Iii ◽  
Posterior Crossbite ◽  
Orthodontic Patients ◽  
Medical University ◽  
Functional Components ◽  
Congenitally Missing

Crossbite is one of the most prevalent malocclusion, posterior crossbite occurs in 8% to 22% of orthodontic cases and anterior crossbite has been seen in Class III cases, which accounts for 3.4% of orthodontic cases. The etiology of posterior crossbite can include any combination of dental, skeletal, and neuro muscular functional components, but the most frequent cause is reduction in width of the maxillary dental arch. Patients/cases seeking comprehensive orthodontic treatment in between 5 to 35 years were diagnosed for crossbite with diagnostic model and care record file. Out of 300 cases 163(54.3%) had crossbite, 90(30%) had anterior crossbite and 109(36.3%) had posterior cross bite. Among posterior crossbite 60(20%) had unilateral and 49(16.3%) had bilateral crossbite. Posterior crossbite was more prevalent than anterior crossbite. Cases with Class I molar relation showed more crossbite. Crossbite was more prevalent in cases with congenitally missing teeth.Bangladesh J Medicine Jan 2015; 26 (1) : 9-12

scholarly journals Distribution of Malocclusion Traits among Orthodontic Patients in a Tertiary Care Center of Western Nepal

2017 ◽  
Vol 7 (1) ◽  
pp. 11-13 ◽  
Author(s):  
Hemant Kumar Halwai ◽  
Vanita Gautam
Keyword(s):  
Orthodontic Treatment ◽  
Care Center ◽  
Tertiary Care ◽  
Total Sample ◽  
Class I ◽  
Class Ii Malocclusion ◽  
Class Iii ◽  
Dental Surgery ◽  
Orthodontic Patients ◽  
Spss Software

Objectives: To determine the pattern of distribution of dental malocclusion in a sample of Nepalese orthodontic patients in Western Nepal.Materials & Method: A sample consisted of 200 study casts of patient who visited Department of Orthodontics, UCMS, Bhairahawa who had never undergone orthodontic treatment previously. The total sample size was divided into male and female groups, age was divided into 3 groups: 8-11 years, 12-17 years, and 18-36 years. All data was recorded and analyzed with SPSS software version 22.Result: Among the total 200 casts examined; the distribution of malocclusion according to Angle’s classification was: Class I malocclusion in 101(50.5%), Class II malocclusion in 90(45%) sample and Class III in 9(4.5%) samples.Conclusion: Angle’s Class I malocclusion was the most prevalent malocclusion among orthodontic patients visiting UCMS College of Dental Surgery. 

scholarly journals Orthodontic Treatment of a Mandibular Incisor Extraction Case with Invisalign

2014 ◽  
Vol 2014 ◽  
pp. 1-4 ◽  
Author(s):  
Khalid H. Zawawi
Keyword(s):  
Treatment Option ◽  
Orthodontic Treatment ◽  
Adult Patients ◽  
Class I ◽  
Effective Treatment Option ◽  
Mandibular Incisor ◽  
Anterior Crowding ◽  
Number Of Patients ◽  
Orthodontic Patients ◽  
Fixed Appliances

Mandibular incisor extraction for orthodontic treatment is considered an unusual treatment option because of the limited number of patients that meet the criteria for such treatment. Accurate diagnosis and treatment planning is essential to achieve the desired results. Adult orthodontic patients are increasingly motivated by esthetic considerations and reject the idea of conventional fixed appliances. In recent years, Invisalign appliances have gained tremendous attention for orthodontic treatment of adult patients to meet their esthetic demands. In this case report, a case of Class I malocclusion was treated with mandibular incisor extraction using the Invisalign appliance system. Successful tooth alignment of both arches was achieved. The use of Invisalign appliance is an effective treatment option in adult patients with Class I malocclusion that requires incisor extraction due to moderate to severe mandibular anterior crowding.

Electrically Evoked Taste Threshold

1976 ◽  
Vol 85 (3) ◽  
pp. 359-367 ◽  
Author(s):  
Mogens Føns
Keyword(s):  
Normal Values ◽  
Simple Procedure ◽  
Normal Subjects ◽  
Clinical Use ◽  
Threshold Values ◽  
Taste Threshold ◽  
Method Of Adjustment

How accurately can the electrically evoked taste threshold be determined? Why have standards of normal values not yet been generally accepted? In order to answer these questions, 80 normal subjects were examined by means of the method of adjustment. The results showed a greater variability of threshold values and side differences than found by other authors. In explanation, it is suggested that the method of adjustment minimizes the biasing effect of the examiner, which normally leads to an underestimation of the threshold variability as well as of the side differences. The method of adjustment is therefore suitable for certain experimental purposes. For clinical use, a simple procedure like Krarups should be preferred. Due to its limited validity, however, only side differences of 100% or more should be considered pathological. A log-scale with rather large units (25% increment steps) is recommended.

scholarly journals Malocclusion Pattern (Angle's) in Mauritian Orthodontic Patients

2012 ◽  
Vol 2012 ◽  
pp. 1-3
Author(s):  
B. H. Durgesh ◽  
Prashanth Prakash ◽  
Ravikumar Ramakrishnaiah ◽  
Basavaraj Subashchandra Phulari ◽  
Abdul Aziz A. Al Kheraif
Keyword(s):  
Ethnic Group ◽  
Orthodontic Treatment ◽  
Class Ii ◽  
Class I ◽  
Age Group ◽  
Class Iii ◽  
Class Iii Malocclusion ◽  
Chinese Ethnicity ◽  
Orthodontic Patients ◽  
Study Population

The aim of the study was to assess the pattern of malocclusion in different ethnic group of Mauritian population visiting the Orthodontic Department at Mauras College of Dentistry and Hospital, Republic of Mauritius. The study population comprised of 624 patients who visited the orthodontic department during 2010. The clinical examination was conducted by a well-calibrated orthodontist. The data were recorded in the case sheets and was analyzed for presence of angles class I, class II, and class III malocclusion in both male and female patients of Asian, African, Caucasian, and Chinese ethnicity aged 5–55 years. Malocclusion was found to be high in females compared to males. 414 patients (150 male + 264 female) presented with class I, 182 patients (52 male + 130 female) presented with class II, and 28 patients (12 male + 16 female) presented with class III. Asian ethnic group were more affected and patient seeking orthodontic treatment was high in 11–15 years age group.

scholarly journals RADIOGRAPHIC INVESTIGATION OF DENTAL ANOMALIES IN LIBYAN ORTHODONTIC PATIENTS

2015 ◽  
Vol 5 ◽  
Author(s):  
Iman Abdelgader ◽  
Tyisir Gnaiber ◽  
Kadija Emnina ◽  
Sulieman Orofi
Keyword(s):  
Class Ii ◽  
Incidence Rates ◽  
Division I ◽  
Class I ◽  
Class Iii ◽  
Dental Anomalies ◽  
Dental Anomaly ◽  
Ectopic Eruption ◽  
Orthodontic Patients ◽  
Male Subjects

Aim: The purpose of this study was to evaluate the prevalence of dental anomalies in different Libyan orthodontic malocclusions.Materials and Methods: Pretreatment orthodontic records of 252 Subjects (57 Males and 195 Females) were classified as Class I (159), Class II Division I (66), Class II Division II (8) and Class III (19). The incidence rates of specific dental anomalies were investigated and analyzed to study the differences of rates of each anomaly according to sex and malocclusion using descriptive analysisResult: It was found that (53.5%) of the patients had at least one dental anomaly in this study. ectopic eruption was the most prevalent dental anomaly (34.9%) followed by thin pipette-shaped roots and short blunt root (30.1%, 24.2%) respectively.Conclusions: Male subjects showed more ectopic eruption and short blunt root then female, Class I malocclusion had the most prevalent dental anomalies compared to the other malocclusion groups.

scholarly journals Comparison of the Condyle Sagittal Position of Class I and Class II Division 2 in Orthodontic Patients

2020 ◽  
Vol 21 (9) ◽  
pp. 977-981
Author(s):  
Murilo Fernando Neuppmann Feres ◽  
Osama Eissa ◽  
Marina Guimarães Roscoe ◽  
Tarek El-Bialy
Keyword(s):  
Class Ii ◽  
Class I ◽  
Orthodontic Patients ◽  
Division 2
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