Orthodontic Surveys—A Critical Appraisal

1980 ◽  
Vol 7 (2) ◽  
pp. 59-63 ◽  
Author(s):  
T. D. Foster

Surveys of the occlusion in population groups usually include in their objectives the academic assessment of occlusal features, the planning of resources for public health treatment programmes, the comparison of differing populations and the screening of groups for orthodontic treatment. The requirements for these purpose differ. While occlusal features are readily measured by any trained observer, the need for treatment is a largely subjective judgement and the difficulty and practicability of treatment are aspects which can only realistically be assessed by clinical orthodontists. The use of an occlusal index, while standardizing the measurement of the occlusion, still retains the subjectivity of the assessment of treatment need, though this subjectivity is also standardized. No occlusal index at present includes any measure of the difficulty or practicability of treatment. Reports of orthodontic surveys on UK populations in the past 30 years reflect the difficulties of making comparable assessments without standardized criteria, as well as secular changes in judgment of treatment need. If surveys are to be of value either in resource planning, screening or comparison of populations there seems to be a need to develop a suitable index which would use measurements rather than classifications as far as possible.

2013 ◽  
Vol 9 (1) ◽  
Author(s):  
Kolawole Kikelomo Adebanke ◽  
Agbaje Hakeem Olatunde ◽  
Otuyemi Olayinka Donald

Objective: The purpose of this study was to determine perceived and normative orthodontic treatment need of senior year dental students using the Index of Orthodontic Treatment Need (IOTN) and Dental Aesthetic Index (DAI). Materials and Methods: Ninety-nine senior year students of the Faculty of Dentistry, Obafemi Awolowo University Ile-Ife, Nigeria, participated. Normative assessment of occlusal characteristics was car¬ried out using IOTN and DAI while the Aesthetic Component (AC) scale of IOTN was used by the students to assess perceived need. Results: With the AC scale of IOTN, 6.1% of the students expressed “borderline need” and 2% “great need” for treatment, while normative need was 41.4% for “borderline need” and 11.1% for “great need”. The Dental Health Component found 37.4% and 24.2% in these categories, respectively. The DAI gave 26.3%, 13.1% and 15.1% in the elective treatment, highly desirable treatment and mandatory treatment categories respectively. No gender-dependent differences were found. Moderate correlation was observed between perceived and normative need (r=0.643), which was significant (p<0.001). Conclusions: Over half of the dental students had orthodontic treatment need with both indices. Normative and perceived treatment need differed significantly. The perception of treatment need is not only influenced by knowledge and severity of malocclusion, as psychosocial factors acting on individuals may be involved.


2016 ◽  
Vol 40 (2) ◽  
pp. 169-174
Author(s):  
Emine Kaygisiz ◽  
Fatma Deniz Uzuner ◽  
Lale Taner

Objectives: To calculate the agreement between the Dental Aesthetic Index (DAI) and the Index of Complexity, Outcome and Need (ICON) in assessing orthodontic treatment need and to determine correlations between the Peer Assessment Rating (PAR) and DAI and ICON scores according to Angle classification among patients referred for orthodontic evaluation. Study Design: This study included 457 randomly selected patients between 9 to17 years of age. Patients were divided into four groups according to Angle classification [Class I (n=154), Class II division 1(Class II/1) (n=155), Class II division 2(Class II/2) (n=52) and Class III (n=96)]. Relationships between PAR scores and ICON and DAI scores were evaluated with the Spearman correlation test. Unweighted kappa statistics were used to analyse agreement between the ICON and DAI on the need for treatment, according to Angle classification. Results: Class I malocclusions scored significantly lower than other Angle classifications in all indices. Both the ICON and DAI showed significant positive correlations with the PAR in the general study population. For Class II/2 patients, no correlation was found between PAR and DAI scores. There was significant agreement between the ICON and DAI on treatment need among Class I, Class II/1 and Class II/2 patients however, no agreement was found for Class III malocclusions. Conclusions: The ICON, DAI and PAR produce similar results and can be used interchangeably for the general orthodontic patient population. However, based on Angle classification, prominent differences exist in scoring certain occlusal features.


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.


2021 ◽  
Vol 7 (4) ◽  
pp. 112-115
Author(s):  
Maleeha Majid ◽  
◽  
Maliha Jamshaid ◽  
Ghina Rizwan ◽  
Zarnab Rizwan ◽  
...  

Objective: Comparison of the self-esteem between patients undergoing fixed orthodonticc treatment in the past 6 months or more, to those not receiving orthodontic treatment or the time passed since the commencement of their treatment has been less than six months. Materials and methods: The participants of this study were divided into two groups, group A and group B. The sample size of each group was 75 making the total 150 aged between 16 to 25 years. The malocclusion severity was assessed with the index of orthodontic treatment need aesthetic component (IOTN-AC) which was 6 or more for both groups. Group A involved patients currently receiving no orthodontic treatment or the time elapsed since the start of the treatment was less than 6 months. Group B on the other hand, comprised of patients undergoing orthodontic treatment in the past 6 months or more. Questionnaires were administered among both group A and group B where self-esteem was measured using the Rosenberg Self-esteem (RSE) Scale. Independent Sample T test was applied on both of these variables. Results: The results did not show any statistically significant association between self-esteem and “the time elapsed since the start of the treatment”. Likewise, the additional factors i.e., Age, Education and Gender too had no impact on the Rosenberg score. Conclusion: No association was found between selfesteem of the patients undergoing fixed Orthodontic treatment, to those not receiving it


2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Son Minh Nguyen ◽  
Minh Khac Nguyen ◽  
Mare Saag ◽  
Triin Jagomagi

Objective. The aim of this study was to evaluate the need for orthodontic treatment among 12-year-old school children and 18-year-olds from Da Nang, Vietnam.Basic Research Design. A random representative sample of 200 12-year-old children from primary schools in Da Nang city was gathered. In addition, 200 18-year-old students were randomly selected from among the 4000 students studying at Da Nang University of Medical Technology and Pharmacy, Vietnam. All the subjects were evaluated according to Angle’s molar relationship, the presence of malocclusion, and the components of the Index of Orthodontic Treatment Need (Dental Health Component, DHC, and Aesthetic Component, AC).Results. The DHC of index of orthodontic treatment need (IOTN) for 12-year-olds was in 60% of casesno or little, in 21% of casesmoderate, and in 19% of casesdefinitive, while the prevalence of moderate and definitive need for treatment among the 18-year-olds was 24% and 30.5%, respectively. The prevalence of class III malocclusion, contact point displacement, and crossbite was higher in 18-year-olds than among the 12-year-olds, while the prevalence of increased overjet and increased overbite had decreased in 18-year-olds compared to the group of 12-year-olds.Conclusions. There is a strong need for orthodontic treatment in Vietnam’s population. The need for orthodontic treatment was determined by contact point displacement, crossbite, increased overjet, and increased overbite.


2018 ◽  
Vol 159 (9) ◽  
pp. 352-356
Author(s):  
Silvia Izabella Pop ◽  
I. Krisztina Mártha ◽  
Réka Csibi ◽  
Mariana Păcurar ◽  
Ciotloș Minodora ◽  
...  

Abstract: Introduction and aim: To evaluate the frequency and severity of the malocclusions and treatment need in a group of adult patients in Târgu-Mureș, dividing them up according to age and gender. Method: Sixty-four, randomly selected patients were divided up according to age and gender. Ten occlusal traits related to dentofacial anomalies according to missing teeth, spacing, crowding and occlusion were used to evaluate the malocclusions on each of their study cast. The Dental Aesthetic Index (DAI) regression equation was used to obtain the DAI score that defines severity. Results: The average DAI score was 38 with a range of 18–79, showing that the majority of patients needed mandatory orthodontic treatment. No statistically significant difference was found between gender, age groups and need for treatment. Conclusion: More than two-fifths of the examined patients have a mandatory need for orthodontic treatment if the DAI scores are the main screening tool. Orv Hetil. 2018; 159(9): 352–356.


e-GIGI ◽  
2016 ◽  
Vol 4 (2) ◽  
Author(s):  
Fanessa E. Kolonio ◽  
P. S. Anindita ◽  
Christy N. Mintjelungan

Abstract: Malocclusion is a form of occlusal disorders caused by irregular teeth growthas well as sizes and position of teeth. Malocclusion could create some disturbances in both physical and mental health of a person including problems in oral function, mastication, highly risk of trauma, periodontal diseases, and caries. Esthetically, malocclusion could affect a person’s appearances and psychological development especially in adolescent. Orthodontic treatment is performed to fix the malocclusion that could affect one’s oral health. The needs of orthodontic treatment itself can be leveled by using Index of Orthodontic Treatment Need (IOTN). This study was aimed to obtain the needs of orthodontic treatment based on IOTN among students aged 12-13 years old at SMPN 1 Wori. This was an observational descriptive study with a cross sectional design. There were 30 respondents obtained by using purposive sampling technique. The need of treatment was leveled by using IOTN consisted of two components: aesthetic component (AC) and dental health component (DHC). The needs of orthodontic treatment measured with AC, 27 person (90%) were as follows: no need or little need for treatment in 27 students (90%); borderline need in 2 students (6.7%); and treatment required in 1 student (3.3%). The needs of orthodontic treatment based on DHC were as follows: no need or little need for treatment in 18 students (60%); borderline need in 8 students (26.7%); and treatment required in 4 students (13.3%).Keywords: malocclusion, needs of orthodontic treatment, IOTN. Abstrak: Maloklusi merupakan penyimpangan oklusi akibat tidak teraturnya pertumbuhan, posisi, serta ukuran gigi. Maloklusi dapat menyebabkan gangguan kesehatan fisik dan psikis, antara lain dapat mengganggu fungsi oral, mastikasi, berisiko tinggi terhadap trauma, penyakit periodontal, dan karies. Maloklusi secara estetis juga dapat memengaruhi penampilan wajah seseorang dan perkembangan psikologis terutama pada remaja. Perawatan ortodonsi ditujukan untuk memperbaiki maloklusi yang dapat memengaruhi kesehatan gigi dan rongga mulut. Perawatan ortodonsi yang tepat dapat dilihat dari tingkat kebutuhan perawatan ortodonsi yang diukur dengan Index of Orthodontic Treatment Need (IOTN). Penelitian ini bertujuan untuk mengetahui kebutuhan perawatan ortodonsi berdasarkan IOTN pada siswa berusia 12 - 13 tahun di SMP N 1 Wori. Jenis penelitian ialah deskriptif observasional dengan desain potong lintang. Subjek penelitian berjumlah 30 siswa diperoleh dengan teknik purposive sampling. Kebutuhan perawatan ortodonsi menggunakan Index of Orthodontic Treatment Need (IOTN) dengan dua komponen, yaitu Aesthetic Component (AC) dan Dental Health Component (DHC). Kebutuhan perawatan ortodonsi berdasarkan AC yaitu: 27 orang (90%) tidak atau butuh perawatan ringan; 2 orang (6,7%) perawatan borderline; dan 1 orang (3,3%) sangat butuh perawatan. Kebutuhan perawatan ortodonsi berdasarkan DHC yaitu: 18 orang (60%) tidak atau butuh perawatan ringan; 8 orang (26,7%) perawatan borderline, dan 4 orang (13,3%) sangat butuh perawatan. Kata kunci: maloklusi, kebutuhan perawatan, IOTN


2011 ◽  
Vol 27 (3) ◽  
pp. 581-590 ◽  
Author(s):  
Rodrigo Norremose Costa ◽  
Mauro Henrique Nogueira Guimarães de Abreu ◽  
Claudia Silami de Magalhães ◽  
Allyson Nogueira Moreira

The aim of the present study was to validate the dental aesthetic index (DAI) and index of complexity, outcome and need (ICON) based on the opinions of a panel of Brazilian orthodontists. A comparison of these two orthodontic treatment need indices was carried out based on the consensus of a panel of 20 experienced orthodontists. A set of 108 study casts representing the full spectrum of malocclusions was selected. A calibrated examiner scored the casts for both indices. The orthodontists individually rated the casts regarding the degree of orthodontic treatment need. The panel's mean rating of the need for treatment was used as the gold standard for evaluating the validity of the indices. The accuracy of the indices, as reflected in the area under receiver-operating characteristic curves, was high: DAI = 81.83% (95%CI: 71.21-92.44); ICON = 88.75% (95%CI: 78.57-98.92). Although the accuracy of the ICON was higher than that of the DAI, both indices are recommended for determining orthodontic treatment need in Brazil.


2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Elfleda Angelina Aikins ◽  
Oluranti Olatokunbo daCosta ◽  
Chukwudi Ochi Onyeaso ◽  
Michael Chukwudi Isiekwe

Introduction. The assessment of orthodontic treatment need and complexity are necessary for informed planning of orthodontic services. The aim of this cross-sectional study was to assess these parameters using the Index of Complexity, Outcome, and Need (ICON) in a Nigerian adolescent population in a region where orthodontic services are just being established.Methods. Six hundred and twelve randomly selected Nigerian adolescents aged 12 to 18 years were examined using the ICON in their school compounds. Descriptive statistics were employed in the data analysis.Results. Out of a total of 38.1% of the population found to need orthodontic treatment, there were more males and older adolescents. The overall mean ICON score for the population was SD with males having statistically higher mean ICON score. The grades of complexity of the population were 21.6% for very difficult and difficult, 7.5% moderate, and 70.9% mild/easy.Conclusions. Although just over a third of the adolescents were found to have a need for treatment, about a quarter of them were found to have difficult and very difficult complexity grades indicating a need for specialist care. The authors recommend the training of more specialist orthodontists in this region.


2012 ◽  
Vol 24 (2) ◽  
Author(s):  
Nurul Amalina Othman ◽  
Jono Salim ◽  
Avi Laviana

Introduction: Index of Orthodontic Treatment Need (IOTN) was first developed by Brook and Shaw (1989) as a system for grading malocclusions, has 2 components, AC (Aesthetic Component) that shows patient’s subjective needs and DHC (Dental Heath Component) that reveals objective needs for orthodontic treatment. The objective of this research was to know the severity of malocclusion based on IOTN index of orthodontic patients at Post Graduate Orthodontic Clinic Faculty of Dentistry Universitas Padjadjaran from year 2009 to 2010. Method: This descriptive research was done by using data from dental study models of the patients and anterior scale photographs of the patients from the Orthodontic PPDGS students, Faculty of Dentistry Universitas Padjadjaran.  Result: The result of this research shows DHC  59.63% of the patients had definite need for treatment, while 27.52% of the patients had borderline need for treatment and the rest 12.85% of the patients had no need or little need for orthodontic treatment. Meanwhile, according to AC, 49.54% of the patients had no need or little need for treatment, while 33.03% of the patients had definite need for treatment and 17.43% of the patients expressed borderline need for treatment. Conclusion: In a nut shell, by using DHC of IOTN, the highest percentage of patients is in definite need for treatment category. However by using AC of IOTN, the highest percentage of patients is in no need or little need for treatment category.


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