scholarly journals Application of occlusal indices in orthodontic practice

2009 ◽  
Vol 56 (4) ◽  
pp. 176-186 ◽  
Author(s):  
Jelena Djordjevic ◽  
Ivana Scepan ◽  
Branislav Glisic

Introduction. Occlusal indices were designed to improve diagnostic criteria and to enable an objective assessment of malocclusion severity. The aim of this study was to present the most frequently used occlusal indices in orthodontic practice and to determine their reliability when applied to dental models. Material and Methods. Three occlusal indices were selected for analysis: the Index of Orthodontic Treatment Need (IOTN), the Peer Assessment Rating Index (PAR) and the Index of Complexity, Outcome and Need (ICON). Twenty dental models of patients referred to Department of Orthodontics, School of Dentistry, Belgrade, with malocclusions of different type and severity were used in this study. All dental models were measured by three afore mentioned indices twice, two months apart, in order to determine intraexaminer reliability. Results. The results showed that three indices had good reliability. Weighted Kappa was calculated for IOTN (0.72 and 0.79 for the aesthetic and the dental health component, respectively) and root mean square error was calculated for PAR and ICON (2.1 and 4.5, respectively). There was no statistically significant difference in scores between two measurements of these two indices (p<0.01). Conclusion. Application of occlusal indices enables orthodontists to determine priorities in patient care, planning of orthodontic service, monitoring and promotion of standards. Occlusal indices are reliable diagnostic criteria.

2011 ◽  
Vol 68 (2) ◽  
pp. 125-129 ◽  
Author(s):  
Jelena Djordjevic ◽  
Ivana Scepan ◽  
Branislav Glisic

Background/Aim. Occlusal indices are quantitative diagnostic indicators of malocclusion severity, orthodontic treatment need, complexity and outcome. The aim of this study was to determine correlations and agreement among three occlusal indices: the Index of Orthodontic Treatment Need (IOTN), the Peer Assessment Rating Index (PAR) and the Index of Complexity, Outcome and Need (ICON) in evaluating orthodontic treatment need. Methods. A total eighty study models of patients referred to the Department of Orthodontics, School of Dentistry, Belgrade, were assessed in this retrospective study. Malocclusions of various types and severity in the permanent dentition were included. Results. The Aesthetic and the Dental Health Component of IOTN determined orthodontic treatment need in 25% and 51% of the patients, respectively. PAR determined orthodontic treatment need in 59% and ICON in 53% of patients. The Aesthetic Component of IOTN and ICON had the highest correlation (Spearman's correlation coefficient 0.95, p < 0.01). Correlations between indices were 0.44 to 0.61 with statistical significance (p < 0.01). The agreement between indices, calculated using Kappa statistics, was 0.22 to 0.63. Conclusion. The most critical in malocclusion assessment was PAR. The Aesthetic Component of IOTN and ICON correlated highly (p < 0.01). Correlations between other pairs of indices were moderate (p < 0.01). The Aesthetic Component of IOTN and ICON had substantial agreement, whereas agreement between other indices was fair or moderate. ICON could replace PAR and IOTN. Application of occlusal indices enables objective evaluation of orthodontic treatment need and easier determination of the treatment priorities.


1996 ◽  
Vol 23 (3) ◽  
pp. 211-220 ◽  
Author(s):  
Elizabeth A. Turbill ◽  
Stephen Richmond ◽  
Jean L. Wright

The subjective grading of cases at the Dental Practice Board of England and Wales was compared to the Peer Assessment Rating Index (PAR) and Index of Orthodontic Treatment Need (IOTN) in assessing 1505 cases sampled at the Board between Late 1990 and mid-1991. Whilst some criteria are common to both systems, case by case there is only limited agreement; sources of disagreement are evaluated. The indices are essentially epidemiological tools; whilst they have shortcomings in assessing individual cases, they are related to peer opinion, and show good reliability when used on samples of cases. They can be readily updated, as findings of research or future peer opinion may dictate. Use of PAR and IOTN at the Board, instead of subjective gradings, would require a departure from decisions on withholding payment on a case by case basis. If, however, they were used onsamples of practitioners' caseloads to assess reduction of malocclusion, and residual malocclusion and need for treatment, practitioners fees could be up- or down-graded periodically according to their overall performance, to encourage more to adopt higher standards. Allowances could be made, however, for ‘limited objective treatments’ and cases where poor co-operation had impaired the result.


2008 ◽  
Vol 87 (6) ◽  
pp. 584-588 ◽  
Author(s):  
H. Kerosuo ◽  
M. Väkiparta ◽  
M. Nyström ◽  
K. Heikinheimo

The benefits of early orthodontic treatment are continuously discussed, but studies are few. We examined whether definite need for orthodontic treatment could be eliminated in public health care by systematically focusing on early intervention. One age cohort living in a rural Finnish municipality (N = 85) was regularly followed from ages 8 to 15 years, and persons with malocclusions were treated according to a pre-planned protocol. Treatment need was assessed according to the Dental Health Component (DHC) of the Index of Orthodontic Treatment Need, and treatment outcome by the Peer Assessment Rating Index (PAR). Fifty-two percent of the cohort received treatment, and definite treatment need decreased from 33% to 9%. In the treated group, the mean PAR score reduction was 63%, and 51% showed more than 70% improvement. The results suggest that an early treatment strategy may considerably reduce the need for orthodontic treatment in public health care with limited specialist resources.


2020 ◽  
Vol 41 (6) ◽  
pp. 436-441 ◽  
Author(s):  
Daniel A. Rosloff ◽  
Kunal Patel ◽  
Paul J. Feustel ◽  
Jocelyn Celestin

Background: Undifferentiated somatoform (US) idiopathic anaphylaxis (IA) is considered a psychogenic disorder characterized by a lack of observable physical findings and poor response to treatment. Although failure to diagnose true anaphylaxis can have disastrous consequences, identification of US-IA is crucial to limit unnecessary expenses and use of health care resources. Objective: To better define the presentation and understand the potential relationship between US-IA and underlying psychiatric comorbidities. Methods: We retrospectively reviewed 110 visits by 107 patients to our institution for evaluation and management of anaphylaxis over a 1-year period. The patients were classified as having either criteria positive (CP) or criteria negative (CN) anaphylaxis based on whether they met Second National Institute of Allergy and Infectious Disease/Food Allergy and Anaphylaxis Network Symposium criteria for the clinical diagnosis of anaphylaxis. Patient characteristics, including objective and subjective signs and symptoms, and the presence of psychiatric diagnoses were collected and analyzed. Statistical significance was assessed by using the Fisher exact test. A literature review of US-IA and other psychogenic forms of anaphylaxis was performed. Results: Patients with CP anaphylaxis were more likely to present with hypotension, wheezing, urticaria, and vomiting than were patients with CN anaphylaxis. The patients with CN anaphylaxis were more likely to present with subjective symptoms of sensory throat tightness or swelling compared with patients with CP anaphylaxis. No significant difference was detected in the prevalence of psychiatric conditions between the two groups. Conclusion: Patients who met previously established diagnostic criteria for anaphylaxis were more likely to present with objective physical findings than those who did not meet criteria for true anaphylaxis. CN patients who presented for treatment of anaphylaxis were more likely to present with subjective symptoms. Formal diagnostic criteria should be used by clinicians when evaluating patients with suspected anaphylaxis.


2011 ◽  
Vol 52 (1) ◽  
pp. 6-11 ◽  
Author(s):  
D Thavarajah ◽  
P Vanezis ◽  
D Perrett

Introduction Studies on the ageing of bruises have been reported on Caucasians or individuals of fair ethnicity. This study focuses on bruise changes in dark-skinned individuals using tristimulus colorimetry for forensic analysis in such individuals. Methods Eighteen subjects of South Indian or Sri-Lankan ethnicity were recruited. Subjects were bruised using a vacuum pump and then daily colour measurements were taken of the bruise using a tristimulus colorimeter. The L* a* b* readings were recorded of a control area and of the bruise until it disappeared. Two Caucasians were used for comparison. Results This study showed that, using colorimetry, bruises on dark-skinned individuals can be measured and analysed even if the bruises are unclear visually. As the bruise is beneath the skin, the colour difference Δ L*, Δ a* and Δ b* were calculated. All values showed a trend, indicating that the L* a* b* measuring technique is a reliable method to analyse bruises on dark-skinned individuals. Comparisons of Asian subjects and Caucasian subjects were performed. The largest difference was seen in the b* value. Statistical analysis showed that Δ L* colour difference was the most consistent (95% CI −4.05 to −2.49) showing a significant difference between days 1–4 and 5–8. Conclusion Objective assessment of bruises on dark-skinned individuals using the L* a* b* method of measuring gave reproducible results. Furthermore, the study showed that the yellowing of a bruise cannot be seen or measured with a tristimulus colorimeter on dark-skinned individuals due to the pigmentation of the skin. With further studies and more subjects, the age of bruises could potentially be assessed for use in forensic analysis.


2018 ◽  
Vol 4 (1) ◽  
pp. e000446 ◽  
Author(s):  
Gafin Ericson Morgan ◽  
Rhodri Martin ◽  
Lisa Williams ◽  
Owen Pearce ◽  
Keith Morris

ObjectivesThe aim of this study was to establish quantitative values for asymptomatic and symptomatic Achilles tendons.DesignCohort study with a single (cross-sectional) time point of patients diagnosed with unilateral Achilles tendinopathy and an asymptomatic group with comparative homogeneity.MethodsA sample of 50 participants: 25 diagnosed with symptomatic unilateral Achilles tendinopathy (AT group) and 25 with asymptomatic Achilles tendons (control group 2). The asymptomatic side of the AT group was used as a control (control group 1). Measurements at 2 cm intervals on the tendon from its insertion at the calcaneum up to the musculotendinous junction were taken non-weight bearing (NWB) and weight bearing (WB) using the MyotonPRO.ResultsThere was a significant (p<0.005) decrease in natural oscillation frequency (F) at points 2, 3 and 4 of the AT group (NWB condition) and points 2 and 3 for the WB condition. There was a significant (p<0.005) increase in logarithmic decrement (D) at points 2 and 3 signifying a decrease in elasticity. Dynamic stiffness (S) was significantly (p<0.005) reduced in the AT group at points 2 and 3 WB and point 3 WB. There was no significant difference in creep (C) observed between the symptomatic and asymptomatic tendons. There was a significant (p<0.005) increase in mechanical stress relaxation time (R) at point 2 NWB.There was a correlation between body weight and gender on tendon mechanics, with the symptomatic tendons. No significant differences were observed between the control group 1 and control group 2.ConclusionsThe MyotonPRO measured decreased stiffness over a section of the tendon corresponding clinically with Achilles tendinopathy. This may have potential in identifying risk of injury and informing rehabilitation, however further extensive research is required to generate baseline data for specific population groups monitoring variables over time. Age, gender and body mass index appear to have some bearing on the mechanical properties of the tendon but mainly in the tendinopathy group.


2018 ◽  
Vol 9 ◽  
pp. 135
Author(s):  
Meutia D Citrawuni ◽  
Margaretha Suharsini ◽  
Eva Fauziah ◽  
Kusuma P Adriani

Objective: Anxiety is regarded as a major problem in children undergoing dental treatment. One of the physiological responses to anxiety is an increased pulse rate. Young children respond aggressively to anxiety and are in need of psychological intervention. Pop-up books can be used as an instrument to improve their interest and to help them understand the substance of dental health education.The objective of this study was to utilize pulse rate measurements to investigate the intervention of a pop-up book in reducing anxiety. A total of 78 children aged 4–6 years were divided into two groups: An intervention group with the pop-up book Aku dan Gigiku and a control group without intervention. The pulse rates of both groups were measured. This study comprised an experimental clinical research design. The independent t-test was used to measure comparisons of decreased pulse rate between the two groups.Result: The result showed that there was a statistically significant difference in decreased pulse rate with and without the intervention of the pop-up book Aku dan Gigiku. Pop-up books are often used as an educational medium for children because they present interesting illustrations and are easy to understand.Conclusion: As a medium of dental health education, pop-up books can contribute significantly to reducing anxiety in children.


2012 ◽  
Vol 83 (2) ◽  
pp. 280-285 ◽  
Author(s):  
Ferdinand M. Machibya ◽  
Xingfu Bao ◽  
Lihua Zhao ◽  
Min Hu

ABSTRACT Objective: To compare the treatment time, outcome, and anchorage loss among orthodontic patients treated by self-ligating brackets (SLBs) and conventional brackets (CBs). Materials and Methods: A retrospective cohort study compared 34 patients (SLB group) treated by SmartClip brackets (3M Unitek, Monrovia, Calif) to 35 patients (CB group) treated by conventional preadjusted Victory series brackets (3M Unitek) and ligated by stainless steel wire ligatures. Pretreatment (T1) and posttreatment (T2) lateral cephalograms were traced and analyzed using Pancherz sagittal-occlusion analysis to obtain skeletal and dental changes in the maxilla and the mandible. The dental cast models were assessed by the Peer Assessment Rating (PAR) Index for the treatment outcomes. Results: The mean treatment time for SLBs (19.19 months) did not show a statistically significant difference from 21.25 months of CBs; the treatment time and pretreatment PAR scores were strongly correlated. There was no difference in anchorage loss between the SLB and CB groups. There were significant dental and skeletal changes among adolescent orthodontic patients regardless of the bracket used. The lingual inclination of the mandibular incisors in the CB group was 3.62° more than in the SLB group (P &lt; .01). Conclusions: The treatment time and anchorage loss are not influenced by the type of bracket used. There are significant dental and skeletal changes among adolescent orthodontic patients regardless of the bracket used. There is significantly greater lingual inclination of mandibular incisors in the CB group than in the SLB group.


2018 ◽  
pp. 27-30
Author(s):  
L.F. Kaskova ◽  
K.M. Popyk ◽  
L.P. Ulasevych

A study of oral hygiene condition in primary school children based on Fedorov-Volodkina index has revealed that children do not clean their teeth properly enough and the average indicator of the studied group is unsatisfactory. The study based on children’s age indicates that the best oral hygiene condition is found in children aged 9 (satisfactory), whereas the worst – in children aged 8 (unsatisfactory). This, in our opinion, is due to the period of frontal teeth eruption and the discomfort associated with such process. Children clean the frontal area not properly. As children grow older, their personal hygiene skills improve as evidenced by the findings of comparing 6- and 9-year-olds’ indices (р<0.05). It was determined that each child’s index by Green-Vermillion and obtained results allows assessing the condition of oral cavity and cleaning skills. It has been identified significant differences in the oral hygiene condition in children who suffer from caries and in children with healthy teeth. Thus, before teeth brushing 6-year-old children without caries had unsatisfactory oral hygiene condition, children with caries –poor oral hygiene condition, 7-year old children – unsatisfactory one, 8-year-old children – unsatisfactory and poor, 9-year-old children – satisfactory and unsatisfactory respectively. The poorest oral hygiene condition was observed with 6-year-olds with caries. It has been assessed that dental tartar based on the studied indices. The study has revealed insufficient oral hygiene of the frontal and lateral jaw areas in children of primary school. This phenomenon creates cariogenic situation in the oral cavity. Having studied oral hygiene condition in children, it was offered by us to brush teeth with the toothbrush and toothpaste which they use at home. They brushed their teeth under the supervision, but without dentist’s management. Observed results were described in this paper. After brushing, oral hygiene condition has been studied again. When assessing Fedorov-Volodkina index, it was not observed any improvement of the index after teeth brushing in children without caries. In 6-, 7-, and 8-year-old children oral hygiene was unsatisfactory, whereas in 9-year-old children it was satisfactory. Oral hygiene improvement was observed in children who have caries. In 6-year-old children – from poor to unsatisfactory, in 7-, 8-, and 9-year-old children it remained at the same unsatisfactory level, but hygiene index indicators probably decreased (р<0.05). The findings indicate that children with caries do not pay attention to oral hygiene, whereas teeth brushing improve the studied index. Green-Vermillion index enables to determine oral hygiene condition in frontal and lateral jaw areas. After individual teeth brushing this hygiene index values slightly improve compared to original values, however, no significant difference in hygiene level was identified. Findings from studying various hygiene indices indicate that children with caries pay attention to brushing frontal jaw area and absolutely no attention to brushing lateral jaw areas with first permanent molars that have recently erupted, and they are not enough mineralized, and are prone to caries at this age. This encourages a study of teeth brushing skills of children of primary school using the suggested form of child oral hygiene skills followed by development of oral hygiene recommendations for the children of this age group with parental involvement.


2019 ◽  
Author(s):  
Abdallah Mohammad Salem Almahasneh ◽  
Samsiah Abdul-Hamid

Peer assessment training has appeared as potential new tools for enhancing Arab English as foreign language (EFL) high school students on writing performance. The purpose of this research was to investigate the effect of using peer assessment training on writing performance among Arab EFL high school students. One hundred and twenty students aged fifteen and sixteen years old participated in this study with an equal number of male and female students. The students were from two Arab high schools in Malaysia. This study employed a quasi-experimental research design. Data was collected using Analytical Marking Scale (Alderson, et al., 1995) to assess student’s writing performance in the pretest and posttest. The result of this study shows that there is a significant difference in the writing performances between the experimental and control groups at P &lt; 0.001. The findings suggests that students who have been exposed to peer assessment training write a better draft compared with those students who were only given conventional training in writing an essay, and without the benefit of peer feedback.


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