FundaÃÃo de Amparo à Pesquisa do Estado do Cearà / O objetivo do presente estudo foi estimar a prevalÃncia da maloclusÃo e a necessidade de tratamento ortodÃntico em adolescentes de Fortaleza e graduÃ-la de acordo com sua severidade, a fim de estabelecer prioridades para o tratamento ortodÃntico e determinar quais os componentes da maloclusÃo que mais pesavam na determinaÃÃo desta circunstÃncia. Investigou-se ainda a associaÃÃo da maloclusÃo com idade, gÃnero, renda e escolaridade. A amostra consistiu de 419 adolescentes entre 14 e 19 anos de idade, selecionados aleatoriamente a partir de uma populaÃÃo de estudantes de uma escola pÃblica. Os critÃrios de graduaÃÃo da maloclusÃo e a avaliaÃÃo da necessidade de tratamento ortodÃntico dos sujeitos foram estabelecidos por um consenso de ortodontistas de Fortaleza. Os resultados mostraram que 95,4% dos sujeitos eram portadores de algum tipo de maloclusÃo, sendo que 60,6% do total possuia maloclusÃo grave com necessidade obrigatÃria de tratamento e 34,8% tinham-na moderada, com necessidade relativa de tratamento. Os fatores de maior interferÃncia no estabelecimento da maloclusÃo grave foram a relaÃÃo de molar maior do que meia cÃspide (30,3%), a mordida cruzada (25,7%) e a relaÃÃo de canino maior do que meia cÃspide (22,2%). NÃo houve associaÃÃo da maloclusÃo com as variÃveis sociodemogrÃficas, a nÃo ser especificamente da idade com o componente mordida cruzada (p<0,05), do gÃnero com o componente relaÃÃo de canino maior do que um meio (p<0,05) e da escolaridade da mÃe com o componente relaÃÃo de molar maior do que um meio (p<0,05). / The aim of the present study was to estimate the prevalence of malocclusion and orthodontic treatment need in adolescents of a public school of Fortaleza and grade it according to the severity, to establish priorities in the orthodontic treatment and to determine which components of malocclusion had higher importance in deterrminating malocclusion. Also, were investigated the association between malocclusion and age, gender, income and scholarship. A total of 419 teenagers, between 14 and 19 years old, selected randomly from a population of students of a public school were enrolled in this project. The criteria of graduation and the assessment of malocclusion components were established by a joint of Fortalezaâs orthodontists. The results show that 95,4% of the subjects had some malocclusion, 60,6% of the total had serious malocclusion with compulsory need of orthodontic treatment, and 34,84% had moderate and relative need of treatment. The components with more prevalence, were the molar relation higher than half cusp (30,3%), crossbite (25,7%) and the canine relation higher than a half cusp (22,2%). There wasnât association between malocclusion and social demographic variables except the relation between age and cross bite (p<0,05), gender and canine relation higher than half a cusp (p<0,05) and motherâs degree of education and molar relation higher than half a cusp (p<0,05).

Orientador: Antonio Wilson Sallum / Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba / Made available in DSpace on 2018-08-02T03:14:04Z (GMT). No. of bitstreams: 1 Tubel_CarlosAlbertoMalanconi_D.pdf: 3587152 bytes, checksum: 2a7d164f6329c6a838944264e4de6eac (MD5) Previous issue date: 2002 / Resumo: O objetivo da presente pesquisa foi analisar em um período de 45 meses a ação do triclosan em pacientes portadores de aparelho ortodôntico fixo (técnica de Roth). Participaram do experimento 50 pacientes do curso de especialização em ortodontia na Faculdade de Odontologia da Universidade Metropolitana de Santos, leucodermas, de ambos os sexos, na faixa etária de 12 a 17 anos, portadores de maloclusão Classe I e Classe II de Angle, os quais foram orientados e supervisionados para efetuar a escovação após as principais refeições, (4 vezes ao dia), juntamente com o dentifrício designado. Os pacientes foram aleatoriamente divididos em 2 grupos experimentais: grupo A (Controle) com escovação associada a um dentifrício placebo, e o grupo B (Teste) com escovação associada ao dentifrício contendo triclosan. Durante a pesquisa foram realizadas 10 avaliações, sendo a primeira realizada antes da colocação do aparelho ortodôntico fixo e as demais avaliações foram realizadas nos seguintes períodos: 5, 10, 15, 20, 25, 30, 35, 40, meses, após o uso do aparelho ortodôntico fixo, sendo a ultima avaliação executada nó 45° mês após a retirada do aparelho ortodôntico fixo, onde foram registrados o índice de placa supra gengival de SILNESS & LÖE e o índice gengival de LÖE & SILNESS de todos os pacientes, nas diferentes épocas. Os dados obtidos foram submetidos a análise estatística, utilizando a comparação entre os tratamentos e épocas.Concluiu-se que: 1. Os dados sugerem que um dentifrício contendo triclosan, deveria ser formulado para o controle efetivo na formação da placa bacteriana e gengivite; 2. O uso de dentifrício contendo triclosan, proporcionou uma melhora no índice de placa bacteriana em 52%, e no índice de sangramento gengival de 58%; 3. A presença de um periodontista durante a terapia ortodôntica é de fundamental importância, na manutenção e restabelecimento dos tecidos periodontais / Abstract: The objective of the present research was to analyze in a period of 45 months the action of triclosanin patients with orthodontic treatment fifty patients of the course of specialization in orthodontics in the Faculdade de Odontologia da Universiade Metropolitana de Santos, leucoderms, of both gendle, in the age range 12 to 25 years old, wíth Class I and Class II malocclusion,which had been guided and supervised to execute brushing after the main meals, (4 times to the day), together with the appointed dentifrice. The patients were dívided in 2 experimental groups: group (Control) with brushing associated with a dentifrice placebo, and group B (Test) with brushing associated with the dentifrice with triclosan. During the research 10 evaluations had been carried through, being the first one carried through before the installation of the fixed orthodontic device and the too much evaluations had been carried through in the following periods: 5, 10, 15, 20, 25, 30, 35, 40, months, after the installation of the fixed ortodontic device, being after finish it evaluation executed in the 45° month the withdrawal of the fixed ortodontic device, where they had been registered the plate index supplies gengival of SILNESS & LÖE and the gengival index of LÖE & SILNESS of all the patients, at the different times. The gotten data were submitted the estatistic analysis, using the comparison between the treatments and time. Conclusions: 1. The data suggest that a dentifiice with triclosan would have to be formulated for the effective control in the formation of the bacterial plate and gengivitis; 2. The withdrawal of the ortodontic device, provided an improvement in the indice of bacterial plaque in 52%, and the indice of gengival bleed of 58%; 3. Ortodontist the periodontist partnership is of basic important, because together they promote health periodontal, providing the minimum of sequelas to individual during the ortodontic therapy / Doutorado / Doutor em Ortodontia

Orientadores: Darcy Flavio Nouer, Alexandre Augusto Zaia / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba / Made available in DSpace on 2018-07-24T13:09:30Z (GMT). No. of bitstreams: 1 Valdrighi_HeloisaCristina_M.pdf: 2289569 bytes, checksum: bcde01911735e0d26e087dee77c34794 (MD5) Previous issue date: 1999 / Resumo: A presente pesquisa teve o objetivo de avaliar, radiograficamente, a média e a freqüência da reabsorção radicular externa apical, correlacionando com a movimentação ortodôntica, bem como avaliar a presença de dimorfismo sexual, em 100 incisivos centrais superiores, de 50 pacientes, sendo 25 do sexo masculino e 25 do sexo feminino, leucodermas, portadores de maloclusão Classe II, divisão I de Angle. Os pacientes foram tratados pela técnica de Edgewise, Filosofia de Tweed, e todos os tratamentos envolveram extrações dos primeiros pré-molares. Para a análise estatística foram utilizados: a) teste t de Student; b) teste de regressão linear; c) coeficiente de correlação de Pearson e d) estatística das ordens assinaladas. Concluiu-se, frente os resultados obtidos, que: 1. A freqüência da reabsorção radicular externa apical nas classes de 1 a 2mm e 2 a 3 mm foi 46% e 44%, respectivamente, representando 90% do experimento; 2. A média de reabsorção radicular externa apical no sexo feminino foi de 2,19mm e no sexo masculino de 1,83mm, sendo verificada, portanto, a presença de dimorfismo sexual; 3. Os movimentos de retração e intrusão predispõem mais a reabsorção radicular externa apical do que o movimento de torque, embora todos tenham sido estatisticamente significantes. 4. A reabsorção radicular verificada neste estudo não comprometeu a estabilidade e longevidade dos dentes analisados, sendo clinicamente irrelevante / Abstract: This present study analysed, by lateral cephalograms and periapical x-ray films, the average and frequency of external apical root resorption, correlationing to orthodontic movement, as well as avalue the sexual dimorphism, in 100 upper central incisors, of 50 patients (25 male and 25 female), with malocclusion Class II, division 1. All the patients were treated by Edgewise technique, Tweed Philosophy, and all treatments envolved extraction of first premolars. For the statistic analysis we used Student t test; linear regression test, Pearson test and a non parametric test. From these data, we conclued that: 1. External apical root resorption frequency between 1 to 2mm and 2 to 3 mm were 46% and 44%, representing 90% of this present study; 2. The average of external apical root resorption in girls and boys were 2,19mm and 1,83mm, was noted the sexual dimorphism; 3. Distal body retraction and incisor intrusion were more predictive of external apical root resorption then torque movement, although all of them were statistic significant. 4. Root resorption analysed in this study didn't compromise the stabilíty and longevity of the examined teeth, being irrelevant in the clinic / Mestrado / Ortodontia / Mestre em Odontologia

Orientador: Antonio Wilson Sallum / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba / Made available in DSpace on 2018-07-25T11:08:36Z (GMT). No. of bitstreams: 1 Tubel_CarlosAlbertoMalanconi_M.pdf: 5126326 bytes, checksum: 8ec90877f813bc397dc2f1e329110380 (MD5) Previous issue date: 1999 / Resumo: O objetivo dessa pesquisa foi avaliar o controle químico-mecânico da placa bacteriana em pacientes submetidos ao tratamento ortodôntico, através da escovação associada a um dentifrício contendo Triclosan-Gantrez-Citrato de Zinco-Pirofosfato de Sódio, quando comparado um dentifrício placebo. Foi realizado um estudo paralelo duplo cego, utilizando uma amostra de 69 pacientes do curso de Especialização em Ortodontia, na Faculdade de Odontologia da Universidade Metropolitana de Santos, tratados pela técnica do Arco Reto (filosofia de Roth), leucodermas, de ambos os sexos, na faixa etária de 12 a 25 anos, com idade média de 14 anos, apresentando dentadura permanente completa, portadores de maloclusão Classe I e Classe II, divisão 1 e 2 de Angle, sendo orientados e supervisionados para realizarem a escovação (técnica de BASS modificada) juntamente com o dentifrício designado. o.s pacientes foram aleatoriamente divididos em dois grupos: grupo A (controle) com escovação associada a um dentifrício placebo; grupo B (teste) com escovação associada a um dentifrício contendo Triclosan. Durante a pesquisa foram realizadas cinco avaliações, sendo a primeira realizada antes da instalação do aparelho ortodôntico fixo; as demais avaliações foram avaliadas nos seguintes períodos 5, 10, 15 e 20 meses, após a instalação do aparelho ortodôntico fixo, onde foram registrados o índice de placa de SILNESS & LÓE 'POT. 93' e o índice gengival de LÓE & SILNESS 'POT. 57', de todos os pacientes, nas diferentes épocas. Para a análise estatística foi usado o teste não paramétrico de Wilcoxon. Conclui-se que: 1. A colocação do aparelho ortodôntico fixo favoreceu o aumento do índice de placa e índice gengival em ambos os grupos no período de 5 meses, em média 25%; 2. O índice de placa bacteriana do grupo controle diminuiu 43% no grupo teste 51 % do início ao término do experimento, não sendo esses valores estatisticamente significantes. 3. O índice gengival do grupo controle diminuiu 20% e do grupo teste 45%, do início ao término do experimento, sendo esses valores estatisticamente significantes. 4. Tanto o grupo teste como o grupo controle apresentaram-se eficientes no controle da placa bacteriana, o grupo teste apresentou melhora estatisticamente significante nos índices gengivais quando comparado ao grupo controle; 5. A. escovação mecânica pareceu ser o melhor meio no controle da remoção da placa bacteriana e manutenção da saúde dos tecidos gengivais; 6. O controle químico-mecânico da placa bacteriana e inflamação gengival associada a um dentifrício contendo Triclosan-Gantrez - Pirofosfato de Sódio - Citrato de Zinco mostrou uma redução estatisticamente significante quando comparado a um dentifrício placebo na redução da placa bacteriana supragengival, sangramento gengival e gengivite marginal / Abstract: The aim of the present investigation was to examine the supragingival plaque control in patients undergoing orthodontic treatment, through oral hygiene associated to a dentifuce containing Triclosan-gantrez-zinc citrate-sodium pyrophosphate, compared to a placebo dentifrice. It was a double blind cross over clinical study conduced on 69 patients of the Metropolitan University of Santos. All of them were Brazilian caucasian, from both sexes. The age range 12 to 25 years old, and has either Class I or Class II malocclusions. They were adequately oriented and supervised to perform oral hygiene associated to a dentifrice containing Triclosan or placebo. The patients were stratified into 2 groups: group A (control) with oral hygiene associated to a dentifrice placebo group B (test) with oral hygiene associated to a dentifuce containing Triclosan. During the present investigation were performed 5 trial, being the first before the orthodontic appliance were installed; the orthers one were after a period the 5, 10, 15 and 20 months, after the appliance were installed. The purpose of theses avaluations was to appraise any alterations in the plaque index (according to Silness & Lõe) and in the gingival index (according to Lõe & Silness). To the statistic analysis was used the non-parametric test, named Wilcoxon. Based on the analysis of the results obtained, we concluded that: 1. The orthodontic appliance increased the plaque and gingival index, in both groups at phase 5 months, mean 25%. 2. The plaque index in the control group decreased 43% and the test group 51% from begining to the end ofthe study, not being this values statistically significant. 3. The gingival index in the control group decreased 20% and in the group test 45%, form begining to the end ofthe experiment, being this values statistically significant. 4. Both test and control group showed satisfatory on plaque control, test gr-oup was statistically significant on gingival index when compared to control group. 5. Mouthbrushing showed to be the best way on plaque remotion and healthy stability of gingival tissues. 6. The plaque and gingival control associated to a dentifrice containg Triclosan-gantrez zinc citrate-sodium pyrophosphate showed decreased statistically significant when compared a placebo dentifrice on supragingival index, gingival bleeding and marginal gingivitis / Mestrado / Ortodontia / Mestre em Odontologia

Magister Scientiae Dentium - MSc(Dent) / A public orthodontic system generally is designed to prioritize patients so that those who have the greatest need receive treatment. The aim of this study was to compare the subjective perceptions of the occlusal appearance of 11 to 12 year-old schoolchildren of Nairobi with the modified Aesthetic Component (AC) scale of the Index of Orthodontic Treatment Need (IOTN). The objectives were to assess the children's perception of their occlusal appearance, categorise the occlusal appearance using the AC scale, by both the children and researcher; and to compare the children's' perception and the AC of the IOTN. Satisfaction with appearance of teeth and occlusion as well as peer comparison was investigated. The treatment need and demand was assessed using the modified AC photographs of the IOTN. Altogether, 488 school children (249 girls and 239 boys) assessed their perception of the anterior teeth using a Verbal Descriptor Scale (VDS) and a Visual Analog Scale (VAS) questionnaire. The researcher examined the anterior teeth of the participants and categorised them using the AC of the IOTN. The following results were reported: about two-thirds of the respondents were satisfied with the appearance of their teeth, with the gender difference being statistically significant. About 35% were dissatisfied or very dissatisfied, but reasons for it varied. More than half of the respondents rated their teeth as better than those of their peers and three-quarters were satisfied with their occlusion, the two responses elicited no gender difference. Treatment need was assessed by use of the AC indicated that there was a moderate agreement between researcher and respondents’ in treatment need assessment. The researcher found 36.3% needed treatment against self-perceived need of 30.9%. One-third of the respondents determined by the researcher to 'need treatment', felt 'no need'. There was no statistical gender difference in perceived need for treatment. The selection of ranked photographs of the AC by both researcher and respondents demonstrated skewed distributions towards the 'low ranked' or attractive end of the ranking order irrespective of the state of occlusion. Statistical comparison of the two methods used, namely the VDS and VAS, indicated that the responses were significantly different. Therefore it is suggested that any treatment priority assessment should take perceptions of occlusal appearance. into consideration.

Magister Chirurgiae Dentium (MChD) / Cephalometric norms for the soft-tissue profile presently utilized in this country, are based almost entirely on North American Caucasian and Negroid studies. Orthodontists use these standards as a guide in the treatment of all sections of the South African population. Various studies have conclusively shown that the soft-tissue profile differs both racially, and from country to country. In recent years the number of patients presenting for orthodontic treatment at the University of the Western Cape has increased significantly. The need has therefore arisen for the establishment of soft-tissue profile trends in the Western Cape area.

Introduction: Orthodontics has clinical benefits, however, the psychosocial outcomes are not well understood. These soft benefits are often classified as aesthetic, functional, and psychosocial, however, there is limited work understanding these outcomes as reported directly from the patient. By better understanding the patient’s perspectives, we can continually refine our clinical model to be patient-centric and more appropriately manage the patient’s expectations and experiences. Materials and Methods: This is a cross-sectional qualitative study of 20 parents of 24 children ages 8-11 years. Participants were remotely interviewed using a semi-structured chronologically based line of questioning to elucidate their perceived outcomes of early orthodontic treatment or phase one. A content thematic analysis using a framework approach was used to analyze the resulting data. Results: The thematic analysis uncovered four major themes and associated subthemes as follows (1) dental health including functional changes, aesthetic improvement, and improved cleansability; (2) opportunity cost: meaning harnessing growth for lasting change, avoidance of future orthodontic treatment, avoidance of future dental treatment, and supervision of growth; (3) social outcomes: encompassing external perception and acceptance, self-perception, parental perception, and reduced dental anxiety; and (4) behavioral changes: including the correction of bad habits, development of good oral hygiene, and an increase in responsibility of the patient. Conclusions:This study highlights the depth of psychosocial benefit perceived by patients undergoing early orthodontic treatment, with the main outcome being functional improvement, followed by an advantage to treatment at a young age, and an improvement in aesthetics. Patients did not recognize an increase in self-perception which is contrary to outcomes previously found in other age groups.

Introduction Dental caries is the most common chronic infectious disease and is associated with plaque, bacteria, diet and saliva. Previous caries experience predicts 1/3 of future caries development. However, there is a lack of knowledge regarding the natural history of caries development at different surfaces and their relative ability to predict caries progression.   Aim The aim of this study was to describe the caries experience and progression of caries at different tooth surfaces during 5 years in patients undergoing orthodontic multibracket treatment. Methods In the previously conducted 452-study, children were examined at 12 and 17 years of age. There were 66 patients with multibrackets at the follow-up who we analyzed. Degrees of caries, fillings and missing tooth were registered in an excel file according to the dental statuses (baseline and follow up).  Excel and SPSS were used to compare the files and create figures.  Results The most affected pair of surfaces at 12 years of age are 36/46 buccally, then occlusally and at 17 years of age 36/46 occlusally and then approximally. The progression of caries and fillings during five years mostly affects 37/47 occlusally and then 17/27 occlusally. A progression also occurred at buccal surfaces 13-23. Conclusion  The results show that occlusal and approximal surfaces at molars experience caries most frequently and the progression is highest for the second molars. There was also a progression of caries noted on 13-23 which could be associated with the multibrackets. This information may be important in future risk assessment models.

SAMMANFATTNING Syfte: Syftet med studien var att granska periapikala intraorala röntgenbilder avseende extern apikal rotresorption på överkäkens incisiver, före och efter retentionsbehandling med avtagbar retentionsapparatur. Syftet var också att registrera intra och inter-observatör överrensstämmelse vid bedömning av rotresorption. Metod: Studien utfördes som en randomiserad klinisk prövning. Patientmaterialet omfattade75 patienter och insamlades på specialistkliniken för ortodonti i Ystad, Sverige. Patienterna behandlades för trångställning mellan år 2001-2007 och behandlingen involverade extraktion av fyra pre-molarer följt av fast ortodontisk apparatur i båda käkarna. Patienterna randomiserades till tre olika retentionsgrupper för retentionsbehandlingen (25 patienter i varje grupp). Intraorala periapikala röntgenbilder togs i överkäksfronten före ortodontiska behandlingens start (T0), vid retentionsbehandlingens start (T2) samt efter retention (T2.1). Genom observation av intraorala periapikala röntgenbilder angavs ett index (0-4) för rotresorptionen för respektive överkäksincisiv. Fyra observatörer granskade var för sig samtliga röntgenbilder, och vid ett senare tillfälle granskades 20 stycken slumpvis utvalda bilder. Resultat: Studien visar att rotresorption förekommer under den ortodontiska behandlingen med fast apparatur och signifikanta skillnader i rotresorption registrerades av två av fyra observatörer under retentionsbehandlingen (p<0.05). Inter-observatörs överrensstämmelsen var generellt låg, medan intra-observatör överrensstämmelsen var något högre. Konklusion: Enligt denna studie förekommer rotresorption under den ortodontiska behandlingen med fast apparatur, och till viss del även under retentionsperioden med avtagbar apparatur. / ABSTRACTAim: The overall aim of the study was to register external apical root resorption in maxillary incisors before and after retention phase with removable appliance. A secondary aim was to register intra- and inter-observer agreement during the assessment of root resorption. Method: The study was carried out as a randomized clinical trial. The patient sample consisted of 75 patients with dental crowding that were treated at specialist orthodontic clinic in Ystad, Sweden. The patients were treated between year 2001-2007 and the treatment involved extraction of four premolars followed by fixed appliance in both jaws. The patients were randomized into three retention groups with 25 patients in each group. Intraoral periapical radiographs were taken on maxillary incisors before orthodontic treatment (T0), before start of retention phase (T2) and after retention (T2.1). An index ranging from 0-4 was used to assess root resorption for each maxillary incisor. At the first assessment, four observers individually analyzed all radiographs. 20 patients were randomly selected for a second assessment. Results: The study shows that root resorption occur during orthodontic treatment with fixed appliance (p<0.05). Statistical significant root resorption occurred during the retention period according to two of four observers. The inter-observer agreement was generally low, while the intra-observer agreement was higher. Conclusion: According to this study, root resorption occurs during fixed orthodontic treatment and to some extent during the retention period with removable appliances.

Darbo tikslas - ištirti ortodontinių anomalijų paplitimą, gydymo reikalingumą bei gydymo poreikį tarp Lietuvos moksleivių. Tikslui pasiekti iškelti šie uždaviniai: 1) nustatyti ortodontinių anomalijų paplitimą tarp 10–11 m. ir 14–15 m. amžiaus Lietuvos moksleivių; 2) įvertinti ir palyginti ortodontinių anomalijų gydymo reikalingumą tarp 10–11 m. ir 14–15 m. Lietuvos moksleivių; 3) ištirti Lietuvos moksleivių požiūrį į ortodontinių anomalijų gydymo poreikį; 4) nustatyti moksleivių ortodontinių anomalijų gydymo poreikio sąsajas su demografiniais ir socialiniais veiksniais. Tyrimas atliktas dešimtyje Lietuvos apskričių, 41 atsitiktinai pasirinktoje mokykloje. Tyrimo metu nustatytas dantų susigrūdimas, tarpai tarp dantų, gilus ir kryžminis sąkandis, pirmųjų krūminių dantų tarpusavio santykis pagal Angle klasifikaciją, gydymo reikalingumui nustatyti naudotas ICON indeksas, o gydymo poreikiui bei sąsajoms su socialinias veiksniais - klausimynas. Ortodontinės anomalijos nustatytos 77 proc. 10–11 m. amžiaus ir 61,7 proc. 14–15 m. amžiaus tirtųjų moksleivių. Ortodontinis gydymas reikalingas beveik pusei jaunesniojo amžiaus ir kas trečiam vyresniojo amžiaus moksleiviui, o ortodontinio gydymo poreikis buvo panašus abiejose amžiaus grupėse. / The aim of this study was to assess the malocclusion prevalence, orthodontic treatment need and demand among Lithuanian schoolchildren. The objectives of the study: 1) to describe the malocclusion prevalence among Lithuanian schoolchildren in 10–11 and 14–15-year old age groups; 2) to evaluate the need for orthodontic treatment among 10–11, 14–15 year-old schoolchildren in Lithuania using the ICON index; 3) to investigate the association between normative (objective) and self-perceived (subjective) orthodontic treatment need; 4) to assess the associations of age, gender, and socioeconomic factors with dental appearance satisfaction and demand for orthodontic treatment. The survey was conducted in 41 randomly selected schools in 10 counties of Lithuania. The study recorded crowding, spacing, overbite, crossbite, relationship of the first upper and lower molars according to Angle’s classification, the orthodontic treatment need was assessed using the ICON index and the children were also invited to complete a questionnaire about treatment need and their appearance. The results showed that 77% of 10–11-year-old and 61.7% of 14–15-year-old schoolchildren had malocclusion. The treatment need among younger schoolchildren was higher than in older group. The subjective demand for orthodontic treatment among 10–11-year-old schoolchildren and 14–15-year-old schoolchildren was similar.