Great Need For Orthodontic Treatment Research Articles

The distribution of malocclusion using the index of orthodontic treatment needs at a university dental hospital in and around Pretoria, South Africa

: The study described the patterns of malocclusion traits and the orthodontic treatment needs at a Dental Hospital using the Index of Orthodontic Treatment Needs (IOTN), Dental Health Component (DHC). We evaluated 2079 pre-treatment study models and clinical records of orthodontic patients from the Department of Orthodontics waiting list. The assessment of malocclusion was measured according to the molar relationship using Angle's classification.The DHC was further used to assess the five malocclusion traits: - missing teeth, overjet, crossbite, displacement of contact point, and overbite, including open bite (MOCDO). The MOCDO score was calculated to determine the orthodontic treatment needed based on the DHC grades 1–5. The data was analysed using SPSS version 28 and the level of significance was set at p≤ 0.05.: The sample consisted of 59.3% (n=1232) females and 40.7% (n= 847) males. The mean age of the study sample was 14 years (SD±2.3) and ranged between 12 to 20 years. Angle's Class I malocclusion was found in 57.7% of the sample, followed by Class II (35.4%) and Class III (6.9%). The orthodontic treatment needs DHC grade were: 53% grade 4 (need for orthodontic treatment), 21% grade 5 (great need for orthodontic treatment), 17% grade 3 (borderline need for orthodontic treatment), 6% grade 2 (little need for orthodontic treatment), and 3% grade 1 (no orthodontic treatment need). A statistically significant difference was found in Angle Class I malocclusion and the DHC grades (p=0.001), as well as MOCDO variables and DHC grades (p=0.001).Angle's Class I malocclusion was the most predominant in our study sample compared to Class II and Class III malocclusions. The DHC of IOTN was successfully used to evaluate the severity of malocclusion with the majority of the sample in Grades 4 and 5, requiring mandatory orthodontic treatment. A high frequency of the occlusal traits included missing teeth, overjet, crossbite, displaced contacts and overbite. The results of our study showed that most patients on the orthodontic waiting list require mandatory orthodontic treatment. Therefore, it is recommended that DHC be used to place patients on the waiting list to prioritise orthodontic treatment.

Orthodontic treatment need, the types of brackets and the oral health-related quality of life.

Malocclusion can affect the oral health-related quality of life (OHRQoL). The influence of the orthodontic treatment need (OTN) and the type of brackets on OHRQOL is not clear. The aim of the present study was to determine the relationships between OTN and the bracket type and OHRQoL during the first 6 months of orthodontic treatment (OT) in adult patients. This cohort study was conducted at the Department of Orthodontics of a private university. A total of 216 patients aged ≥18 years participated in the study (106 patients with conventional brackets and 110 with self-ligating brackets). The OHRQoL was evaluated using the 14-item Oral Health Impact Profile (OHIP-14) at 5 time points - before OT (T0), and at 24/48 h (T1), 1 month (T2), 3 months (T3), and 6 months (T4) after the installation of the orthodontic appliance. The OTN was evaluated with the dental aesthetic index (DAI) by 2 previously calibrated operators. For the statistical analysis, the χ2 test and the Mann-Whitney U test were used. Additionally, Poisson regression models were performed. The evidence of an association between OHRQoL and OTN was found only at T3 (p = 0.0095). No association was found between OHRQoL and the bracket type. However, in the regression models, OHRQoL was statistically significantly worse at T3 in the group with a greater OTN (IRR (incidence rate ratio) = 1.34; 95% CI (confidence interval): 1.21;1.48) and at T4 in the self-ligation group (IRR = 1.23; 95% CI: 1.12;1.36). The OHRQoL was affected in the same way at the beginning of OT, regardless of OTN and the bracket type used. However, a worse OHRQoL was observed at 3 months in subjects with greater OTN and at 6 months in patients with self-ligating brackets.

Oral health characteristics in children and adolescents with Down syndrome.

To compare oral health indicators of children/adolescents with Down syndrome (DS) with a group of children/adolescents without DS. This cross-sectional study included 144 individuals with DS, ages 4 to 18 years, matched for age and sex with a group of 144 individuals without DS, and their parents/caregivers. Parents/caregivers completed a questionnaire regarding sociodemographic information and habits related to their children's oral health. Clinical examination of the children/adolescents evaluated dental caries experience (DMFT/dmft), bleeding on periodontal probing, presence of visible plaque, clinical consequences of untreated dental caries (PUFA/pufa), and malocclusion (DAI). The chi-square test, linear by linear test, and Mann-Whitney test were used to compare the variables between the groups (p < .05). Children/adolescents without DS brushed their teeth more times per day (p < .001) and had a higher frequency of daily sugar intake (p < .001). The children/adolescents in the DS group had a greater presence of gingival bleeding (p < .001) and had a greater number of cases of "severe malocclusion" and "very severe malocclusion" (p = .001). No difference was found in the prevalence of dental caries between the two groups. The children/adolescents in the DS group had a greater presence of gingival bleeding during the clinical examination and had a greater need for orthodontic treatment.

Characteristics and Dental Indices of Orthodontic Patients Using Aligners or Brackets.

Background. Clear aligners have become a treatment alternative to metal brackets in recent years due to the advantages of aesthetics, comfort, and oral health improvement. Nevertheless, few studies have analyzed the clinical characteristics and dental indices of orthodontic patients using aligners or brackets. Methods. A total of 170 patients received orthodontic treatment at Chang Gung Memorial Hospital in 2021. Patients were stratified by types of treatment (Invisalign® clear aligner (n = 60) or metal bracket (n = 110). Results: Patients were aged 26.1 ± 7.2 years, and most were female (75.0%). The Invisalign® group was older than the bracket group (p = 0.003). The skeletal relationships were mainly Class I (49.4%), followed by Class II (30.0%) and Class III (20.6%). The molar relationships were primarily Class I (38.8%), followed by Class II (37.1%) and Class III (24.1%). The decayed, missing, and filled tooth (DMFT) index was 9.9 ± 6.0, including 2.1 ± 2.9 for decayed teeth, 0.5 ± 1.1 for missing teeth, and 7.3 ± 4.3 for filled teeth. There were no significant differences in the DMFT index or skeletal and molar relationships between the groups (p > 0.05). The index of complexity outcome and need (ICON) was 56.8 ± 13.5, and the score was lower in the Invisalign® group than in the bracket group (p = 0.002). Among the variables included in the ICON assessment, only the aesthetic variable was lower in the Invisalign® group than in the bracket group (p < 0.001). The Frankfort-mandibular plane angle was 27.9 ± 5.1 degrees. Finally, the E-line of the lower lip was lower in the Invisalign® group than in the bracket group (1.5 ± 2.4 versus 2.8 ± 3.1, p = 0.005). Conclusions. Older patients showed a greater intention to choose Invisalign® treatment for improving the appearance of their teeth than younger patients, who chose metal bracket treatment. The demand for Invisalign® aligner treatment for aesthetic reasons was substantial. A soft tissue profile with more protrusive lower lips and a greater need for orthodontic treatment was found in the bracket group.

Epidemiology of orthodontic treatment need in southwestern Ethiopian children: a cross sectional study using the index of orthodontic treatment need

BackgroundThe planning of orthodontic treatment within a public health system requires information on the orthodontic treatment needs of the population. It is important to have epidemiological data to estimate the total need for orthodontic care in any region. The present study aimed to determine the orthodontic treatment need in 12 years old Southwestern Ethiopian children.MethodsThe institution-based cross-sectional study was conducted which involved 347 twelve years old school children randomly selected from seven different public schools in Jimma Town, Southwestern Ethiopia. A structured interview and clinical examination were used to assess the subjects. One examiner used Dental Health Component (DHC) and Aesthetic Component (AC) of the Index of Orthodontic Treatment Need (IOTN) to estimate the treatment need. Descriptive statistics and chi-square tests were used for data analysis with statistical significance set at P < 0.05.ResultsAccording to the DHC of IOTN, almost half of the subjects in the sample were in moderate to the great need for orthodontic treatment. About 15% of the children had a great need for orthodontic treatment based on IOTN-AC. The most prevalent occlusal traits for defining the DHC categorization include increased Overjet (30.8%) and Crowding (23.3%). There was no statistical difference in the distribution of DHC grades and AC scored based on gender.ConclusionThis study revealed that the need for orthodontic treatment was high. The percentage of the need for orthodontic treatment is higher in comparison to most of the studies conducted in African regions. Therefore, publicly subsidized orthodontic treatment should be planned and provided to those who are in great need for orthodontic treatment. Besides, awareness about orthodontic treatment should also be considered.

Determinants of children’s oral health-related quality of life following aesthetic treatment of enamel opacities

ObjectivesTo identify clinical and psychosocial predictors of oral health-related quality of life (OHRQoL) in children with molar incisor hypomineralisation (MIH) following aesthetic treatment of incisor opacities. MethodsParticipants were 7- to 16-year-old children referred to a UK Dental Hospital for management of incisor opacities. Prior to treatment (To), participants completed validated questionnaires to assess OHRQoL and overall health status (C−OHIP-SF19), and self-concept (Harter’s Self-Perception Profile for Children [SPPC]). Interventions for MIH included microabrasion, resin infiltration, tooth whitening or composite resin restoration. Children were reviewed after six months (T1) when they re-completed the C−OHIP-SF19 and SPPC questionnaires. The relationships of predictors with improvement of children’s OHRQoL (T1-To) and children’s overall health status at T1 were assessed using linear and ordinal logistic regression respectively, guided by the Wilson and Cleary’s theoretical model. ResultsOf 103 participants, 86 were reviewed at T1 (83.5 % completion rate). Their mean age was 11-years (range = 7−16) and 60 % were female. Total and domain OHRQoL scores significantly increased (improved OHRQoL) following MIH treatment. There was a significant positive change in SPPC physical appearance subscale score between To and T1. A higher number of anterior teeth requiring aesthetic treatment were associated with poor improvement of socio-emotional wellbeing at T1 (Coef =-0.43). Higher self-concept at To was associated with greater improvement of socio-emotional wellbeing at T1 (ß = 3.44). Greater orthodontic treatment need (i.e. higher IOTN-AC score) at T0 was linked to worse overall oral health at T1 (OR = 0.43). ConclusionsPsychosocial factors and dental clinical characteristics were associated with change in children’s OHRQoL following minimal interventions for incisor opacities. Clinical significanceMIH is a common condition and clinicians should be aware of the negative impacts some children experience, particularly those with multiple anterior opacities, poor tooth alignment and low self-concept. However, simple, minimally invasive treatments can provide good clinical and psychosocial outcomes and should be offered to children reporting negative effects.

Index of Complexity, Outcome, and Need (ICON) in Dubai school-aged adolescents

Objectives: The purpose of the study was to epidemiologically assess the prevalence of malocclusion and orthodontic treatment need in school-aged adolescents in Dubai using the Index of Complexity, Outcome, and Need (ICON). Null hypothesis tested was no significant differences in ICON scores among Dubai students as a function of gender or geographic/ethnic background. Materials and Methods: The sample was 17,763 adolescents with nearly equal by gender; India and the United Arab Emirates were represented about the same. Scores for malocclusion from Peer Assessment Rating (PAR) index evaluations combined with the esthetic component of the Index of Orthodontic Treatment Need (IOTN) comprised the ICON score. Results: Male ICON scores were significantly greater than female scores. Three scores contributing to ICON were significantly higher in males, i.e., buccal anterior-posterior occlusion, incisor overbite, and esthetic component. ICON scores for South Asia were significantly higher than the Middle East, i.e., 59.9 versus 52.4, P = 0.000. ICON scores were no different for the UAE males and females but otherwise significantly different (&gt;) as follows: Indian males &gt; Indian females &gt; UAE males = UAE females. Conclusions: Dubai school-aged adolescents treatment need is the same for the UAE males and females, but there is a significantly greater orthodontic treatment need for males and females from India.

Orthodontic treatment need of children and adolescents with special healthcare needs resident in Ile-Ife, Nigeria.

This study determined differences in the orthodontic treatment need of children and adolescents with and without special healthcare needs (SHCN) resident in Ile-Ife. Participants were children and adolescents aged 6 to 19 years with and without SHCN recruited from regular and special schools in Ile-Ife, Nigeria, respectively. SHCN were categorised as hearing impairment (HI), visual impairment (VI), physical impairment (PI) or intellectual disability (ID). The orthodontic treatment need was determined using the aesthetic component (AC) and dental health component (DHC) of the index of orthodontic treatment need (IOTN) and the dental aesthetic index (DAI). Chi-squared tests were used to determine differences in orthodontic treatment need; one-way analysis of variance was used to compare participants' mean DAI scores. Statistical significance was inferred at p < 0.05. The data of 164 participants with SHCN and 208 participants without SHCN were analysed. Significantly more children and adolescents with SHCN than those without SHCN had great need for treatment on the AC (15.2% vs. 4.3%; p<0.001) and the DHC (28.0% vs. 18.3%; p = 0.005) of IOTN and mandatory need for treatment using the DAI (28.0% vs. 12.0%; p < 0.001). The orthodontic treatment need of participants with intellectual disability, visual impairments and multiple SHCN differed significantly from the control group, those with intellectual disability also had greater need for orthodontic treatment compared with those with physical and hearing impairments (p < 0.05) CONCLUSION: Children and adolescents with SHCN, resident in Ile-Ife, are at greater risk of having malocclusion traits that require orthodontic treatment when compared with their peers without SHCN, especially those with intellectual disability.

Orthodontic treatment need, self-esteem, and oral health-related quality of life among 12-yr-old schoolchildren.

The aim of this study was to investigate the association between orthodontic treatment need and oral health-related quality of life (OHRQoL) among 12-yr-old children. The study also assessed whether self-esteem modifies and/or moderates this relationship. Cross-sectional data on 406 schoolchildren aged 12yr were analyzed. Data on socio-economic and demographic characteristics, dental pain, self-esteem, and OHRQoL were collected using validated questionnaires. Orthodontic treatment need was assessed, through dental examinations, using the dental aesthetic index (DAI). Multiple negative binomial regression and path analysis were used to estimate the association of orthodontic treatment need and self-esteem with OHRQoL. A modifying effect of self-esteem on the relationship between DAI and OHRQoL was observed. Self-esteem did not mediate the abovementioned relationship. Children with lower scores of self-esteem had worse OHRQoL among those with lower orthodontic treatment need (a DAI score of<31). However, self-esteem did not influence the association between DAI and OHRQoL in children with greater orthodontic treatment need (a DAI score of≥31). Self-esteem attenuated the impact of malocclusion on OHRQoL in children with minor or definite malocclusion, but not among those with severe or very severe malocclusion. Self-esteem appears to buffer the impact of malocclusion on OHRQoL in children with minor orthodontic treatment need.

Correlation between the DAI and ICON Indices used for Assessment of Orthodontic Treatment need in Croatian Schoolchildren.

IntroductionThe aims were: evaluation of the correlation between the Dental Aesthetic Index (DAI) and Index of Complexity, Outcome and Need (ICON); the assessment of orthodontic treatment need for schoolchildren in a population with two indices, separately for schoolchildren with mixed and permanent dentition; the estimation of the population share that could not receive orthodontic treatment because of the presence of caries and/or gingivitis.MethodsA total of 2652 Zagreb school children (7 - 19 years old, 52.4% of them were females) completed a questionnaire regarding previous orthodontic treatment and the type of appliance used. Their oral cavity was also inspected. The DAI and ICON indices were used for the assessment of malocclusion prevalence.ResultsThe subjects with mixed dentition had a greater need for orthodontic treatment, when compared to subjects with permanent dentition, when using the DAI index (p<0.001). When using the ICON index, 11.7% of subjects with mixed dentition had very severe malocclusion, as opposed to 5.8% of subjects with permanent dentition. The DAI and ICON scores correlated positively linearly (r=0.521; p<0.001). A higher prevalence of both gingivitis and caries was recorded more often in boys; caries more often in the group with the mixed dentition, and gingivitis in the group with permanent dentition (p<0.05).ConclusionThe DAI and ICON indices have moderate agreement in assessment of malocclusion severity scores. One third of all schoolchildren with various degrees of both ICON and DAI indices have gingivitis, and half of them have caries.

Orthodontic treatment need in a group of 6–12-year-old children in Szczecin

ABSTRAKTWstęp: Celem pracy była ocena ortodontycznej potrzeby leczenia w populacji dzieci w Szczecinie oraz określenie możliwych czynników związanych z tą potrzebą.Materiały i metody: Badaniem objęto 532 dzieci nieleczonych ortodontycznie, podzielonych na dwie grupy: 279 6–8-latków i 253 9–12-latków. Ortodontyczną potrzebę leczenia oceniono za pomocą komponenty zdrowotnej (DHC) i komponenty estetycznej (AC) wskaźnika ortodontycznej potrzeby leczniczej. Wyniki poddano analizie za pomocą testu χ2. Analizę wieloczynnikowej regresji logistycznej przeprowadzono w celu ustalenia związku między potrzebą leczenia a zmiennymi niezależnymi.Wyniki: Pomiędzy grupami 6–8-latków i 9–12-latków zaobserwowano istotne statystycznie różnice na podstawie dwóch komponent wskaźnika (DHC ≥ 4 i/lub AC ≥ 8) w ocenie wyraźnej potrzeby leczenia (odpowiednio 14% i 20,6%; p = 0,044). Czynniki takie jak nieprawidłowości zębowe, II klasa Angle’a, zwiększony nagryz poziomy, zgryz krzyżowy, a także przemieszczenie punktów kontaktu były istotnie statystycznie związane z wyraźną potrzebą leczenia (DHC stopień 4 i 5).Wnioski: W badanej populacji ortodontyczna potrzeba leczenia była zbliżona lub mniejsza w porównaniu z innymi populacjami europejskimi. Większa potrzeba leczenia zaobserwowana w grupie 9–12-latków podkreśla znaczenie wczesnej diagnozy wad zgryzu oraz konieczności zgłaszania się pacjentów do leczenia we właściwym czasie.

Assessment of Malocclusion and Orthodontic Treatment Need Among Hearing and Speech Impaired Children

Aim: Children with special needs are prone to poor oral health due to their potential sensory, motor and intellectual disturbances. The purpose of this study was to evaluate type and severity of malocclusion and assess orthodontic treatment need in hearing and speech impaired children. Materials and Methods: Sixty-seven hearing and speech impaired children aged 7-14 years studying in special schools in Bhilai and Durg were included in this study. The Dental Health Component (DHC) and Aesthetic Component (AC) of Index of Orthodontic Treatment Need (IOTN) were recorded by one examiner. Data were analysed using student's t-test and chi-square test at a level of significance of .05. Results: According to AC, 61.2% children had no/little need, 35.8% had moderate need and 3% had great need of orthodontic treatment. According to DHC, 35.8% children had no/little treatment need, 43.3% had moderate need and 20.9% had great treatment need. Chi-square test showed a highly significant gender difference (P&lt;.001), according to gender based DHC grade. Also, a highly significant difference between patient's perception and orthodontist's opinion for both AC and DHC (P&lt;.001). Conclusion: The patient's perception and orthodontist's opinion differed for assessment of malocclusion of hearing and speech impaired children. There was a moderate need of orthodontic treatment in these children of Bhilai and Durg.

The prevalence of orthodontic treatment needs of school children in northern Herzegovina.

The study was conducted to evaluate the Index of Orthodontic Treatment Need based on the Dental Health Component (DHC). 300 students aged 12-15 years were included in this study. The examinations were performed in two elementary schools in the municipality of Prozor-Rama, using standard dental instruments. Children were ranked into five grades according to the DHC. Only 12% of children were found not to have a need for orthodontic treatment. Of the others, 45.33% had a great, and 10% a very great need for orthodontic treatment. The rest of the children were found to have a need for minor or moderate orthodontic treatment. Slightly more girls than boys had a great or a very great need for treatment, although the difference by gender was not statistically significant. Analysis of the level of need by age of children showed no significant difference; children with a great need of orthodontic treatment prevailed in all age groups. About 85% of children with a great and a very great need for orthodontic treatment would agree to orthodontic treatment, while the rate of non-acceptance was about 5%. The high rate of need for orthodontic treatment in the examined students is explained by the lack of programs for this type of health care, the insufficient number of qualified orthodontic specialists, and the very low percentage of allocations from the state budget for oral health.

Association between normative and self-perceived orthodontic treatment need in a Lebanese population.

The aims of this study were to investigate the association between normative and perceived orthodontic treatment need in a Lebanese population and the effect of sociodemographic status on orthodontic treatment need. A prospective cross-sectional clinical study was designed using a sample of 150subjects (81males and 69females) aged 11-18years seeking dental treatment at Beirut Arab University. Normative orthodontic treatment need was scored using the two components of the Index of Orthodontic Treatment Need (IOTN), the Dental Health Component (DHC) and the Aesthetic Component (AC). Perceived need for orthodontic treatment was evaluated by scoring the AC of the IOTN. A total of 31.3% of the sample were in great need of orthodontic treatment according to the DHC of the IOTN. On the other hand, only 9% of the sample perceived their need to be definite. A significant positive but weak correlation was found between the normative and perceived need for orthodontic treatment. There was also a significant association between age and normative treatment need.

Self-perceived need for dental treatment and related factors. A cross-sectional population-based study

This study compared adolescents' self-perceived need for orthodontic treatment with the normative need for such treatment and investigated associations between socioeconomic and demographic variables and self-perceptions of dental malocclusion. This cross-sectional study involved 1015 schoolchildren aged 12-15 years in São Luís, Maranhão, Brazil. The following data were collected using a questionnaire and an orthodontic examination card: demographic and identifying data, socioeconomic data, educational levels of family, household income, economic classification criteria, and self-reported skin color behavioral data, and oral health data. Normative occlusal condition was examined using the Angle classification and Dental Aesthetic Index (DAI). Data were analyzed using the chi-squared test (to analyze differences in the frequency distribuition of qualitative variables) and Poisson regression (to stimate associations between the perceived need of orthodontic treatment and study covariates), with a 5% significance level. Schoolchildren's self-perceived need for orthodontic treatment was associated with sex (p = 0.022) and the normative need for treatment (p = 0.004). Among socioeconomic, demographic, and oral health variables, only sex [prevalence ratio (PR) = 1.15; 95% confidence interval (95%CI) = 1.04-1.28; p = 0.009] and the normative need for orthodontic treatment (PR = 1.19; 95%CI = 1.08-1.32; p < 0.001) were associated with the perception of malocclusion, with female adolescents reporting a greater need for orthodontic treatment. Female adolescents seems to be more sensitive to oral health problems. The results suggest that the DAI score might reflect a self-perceived need for orthodontic treatment and the Angle classification might overestimate the orthodontic treatment need.

Dental Aesthetic Index among Nepalese Orthodontic Patients

Introduction: Orthodontic indices are used for the assessment of malocclusion, its severity level, and treatment need. Dental Aesthetic Index (DAI) is a simple, valid and reliable index commonly used for epidemiological survey and initial screening of the orthodontic patients.Objective: To evaluate the frequency and severity of malocclusion and orthodontic treatment need among Nepalese patients using DAI and to compare the treatment need between gender groups.Materials &amp; Method: 150 pairs of maxillary and mandibular pre-treatment orthodontic study models of 59 male and 91 female patients with permanent dentition were randomly selected from the Department of Orthodontics, Kantipur Dental College. Ten occlusal traits of DAI were assessed on each pair of study models using graduated periodontal probe and metallic scale by a single examiner. Cumulative DAI scores were calculated according to standard DAI method to differentiate the severity of malocclusion and orthodontic treatment need.Result: About 60% of the sample presented severe or very severe (handicapping) malocclusions indicating highly desirable or mandatory treatment need. 21.3% had definite malocclusion that required elective treatment need, 19.3% had normal occlusion with no or slight treatment need. There was no statistically different mean DAI scores between male and female samples (p=0.116)Conclusion: Most of the samples were in great need of orthodontic treatment with very severe malocclusions. Male samples had greater percentage of ‘very severe’ malocclusion than female. Malocclusion was characterized with high frequency of anterior incisal irregularity, maxillary overjet, midline diastema. DAI can be used as a screening tool rather than the decision making tool.

Prevalence of malocclusion and orthodontic treatment needs among down syndrome sudanese individuals

Objective: To determine the prevalence of malocclusion and orthodontic treatment needs in Sudanese’s Down syndrome individuals in Khartoum area. Material and Methods: A total of 75 (37 males and 38 females) Down syndrome individuals age ranging from 6-28 years of age, were clinically examined after obtaining their guardian’s consent. Malocclusion was determined based on Angle and Incisor classification of malocclusion. The data were analysed and presented in tables using the Statistic Package for social sciences (SPSS) program version17 descriptive statistic, Frequency distribution tables and graph were utilized to perform the results. Results: Angle Class III malocclusion (58.7%) and Incisor III malocclusion (53.3%) represents the most prevalent types of malocclusions. Angle class III malocclusion was more frequent among females (60.5%) than males (56.8%).The majority of individuals with Down syndrome are in great need for orthodontic treatment (85.3%). Conclusion: The prevalence of malocclusion and orthodontic treatment need among Sudanese Down syndrome individuals was high. Angle and Incisor class III malocclusions represent the commonest trait of malocclusion and reported more frequency in females than males. Orthodontic treatment for Down syndrome individual should be multidisciplinary in order to conservative superior treatment pattern. Keywords: Down syndrome; Class III malocclusion; Orthodontic treatment.

Index of orthodontic treatment need in obese adolescents.

Aim. This case-control retrospective study is aimed at assessing if obese adolescents need more orthodontic treatment in comparison with normal-weight patients of the same age. Methods. The test group included 100 obese subjects (50 males and 50 females; average age: 13.09 ± 1.19 years old) and the control group included 100 normal-weight patients matched for age and sex (50 males and 50 females; average age: 13.07 ± 1.26 years old). Clinical examinations were conducted on dental casts to assess the need of orthodontic treatment, by using the Index of Orthodontic Treatment Need (IOTN) (DHC, dental health component; AC, aesthetic components). Results. No statistically significant difference (P > 0.05) was observed between the two groups with regard to AC. Obese females showed a significant (P < 0.05) higher percentage of DHC 3 (32%) in comparison to the normal-weight girls (22%); for the other grades of DHC and for the single kind of malocclusion, no significant difference was found. Conclusions. Obese adolescents showed a similar need for orthodontic treatment compared to normal-weight patients of the same age. However, in obese females, a slightly greater need for orthodontic treatment was observed, compared to normal-weight patients.

Aplicação do índice de necessidade de tratamento ortodôntico numa população ortodôntica portuguesa

ObjectiveThe purpose of this study was to assess the orthodontic needs based on IOTN index on an orthodontic population, who sought the Orthodontic Department of Faculty of Dental Medicine of University of Porto during the period from 2005 and 2011. Methods120 patients (56 males and 64 females) with a mean age of 11.5±1.75 years were assessed by The Index of Orthodontic Treatment Need (IOTN), with two distinct components, Dental Health Component (DHC) and Aesthetic Component (AC). A single examiner evaluated the treatment need through the analysis of study models, photographs and panoramic radiographs. ResultsThe DHC showed that 79% of assessed population were in the group of great need for orthodontic treatment, while the AC found 27% in the same group. Permanent dentition was significantly related to great treatment need (p=0.002). Between genders and in the confrontation of DHC and AC evaluations, there were no significant differences. Increased overjet and crowding were the most common occlusal feature in the great treatment need group. According to Angle malocclusion Class I, II and III was 31%, 53% e 16%, respectively. ConclusionThis study shows that some oclusal alterations, despite being overvalued by objective criteria, do not represent a significant aesthetic problem.

Pattern of Malocclusion and Treatment Need in Orthodontic Patients: An Institution-based Study

ABSTRACT The aim of this study was to analyze the malocclusion pattern among patients who visited Department of Orthodontics of BVU Dental College and Hospital, Sangli (Maharashtra) as a baseline data for proper treatment planning, teaching and further research. Materials and methods This study was conducted on 125 patients who attended the orthodontic department from December 2008 to June 2010. Information regarding age, sex, type of malocclusion, dentofacial patterns and dentofacial characteristics was obtained from patients records. Orthodontic treatment need was assessed using DHC component of IOTN. Results The results of the study showed that the patients age ranged from 10 to 33 years with mean age of 16 years 9 months (+ 3.92). There were 91 (72.8%) females and 34 (28.2%) males. Chief complaints of majority of patients were ‘upper front teeth forward’ and ‘irregular teeth’. The commonest type of malocclusion was Angle's class II which was seen in 60 (48%) of patients. There was an increased overjet in 81% of subjects. Statistically significant association was found between skeletal and Angle's classes (p &lt; 0.01). Assessment of need for orthodontic treatment using the DHC component of IOTN showed that 59 (47.2%) were in great need of orthodontic treatment and 53 (42.4%) had definite need of treatment. Conclusion The results give a detailed pattern of malocclusion in orthodontic patients and may provide a baseline data for research and planning orthodontic services. How to cite this article Nanjannawar L, Agrawal JA, Agrawal M. Pattern of Malocclusion and Treatment Need in Orthodontic Patients: An Institution-based Study. World J Dent 2012;3(2):136-140.