Acompanha memorial / Tese (livre-docencia) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba / Made available in DSpace on 2018-07-16T03:38:07Z (GMT). No. of bitstreams: 1 Renci_Jose_LD.pdf: 879815 bytes, checksum: aac8ebb35c29c4ebab63583274af96a7 (MD5) Previous issue date: 1981 / Resumo: Não informado / Abstract: Not informed / Tese (livre-docencia) - Univer / Odontopediatria / Livre-Docente em Odontologia

Tese (livre-docencia) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba / Made available in DSpace on 2018-07-16T11:15:38Z (GMT). No. of bitstreams: 1 Peters_ClotildesFernandes_LD.pdf: 812641 bytes, checksum: 8a2183faa8f14884d05b8a60a8ebbbb4 (MD5) Previous issue date: 1979 / Resumo: Não informado / Abstract: Not informed / Tese (livre-docencia) - Univer / Odontopediatria / Livre-Docente em Odontologia

Orientador: Guilherme Blumen / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba / Made available in DSpace on 2018-07-16T22:19:48Z (GMT). No. of bitstreams: 1 Schiavinato_CeliaRegina_M.pdf: 18188221 bytes, checksum: b1f6278159cd08e1cd0e45b21bf62a46 (MD5) Previous issue date: 1979 / Resumo: Segundas molares de cobaias de dois dias de vida, fixados por perfusão com uma solução de glutaraldeido a 2,5% em tampão fosfato e pós-fixadas par imersão na mesma liquida, descalcificados em EDTA a 4,13% e pós-fixados finalmente, em tetróxido de ósmio a 1% foram incluídas em Epon para exame ao M.E. Os compartimentos (de acordo com Blumen, 1970) do órgão do esmalte das lados mesial ou distal foram selecionados, aparadas e as ameloblastos mais algumas estruturas e células das regiões limítrofes de cada um deles, foram montadas em telas de cobre de 200 a 300 "mesh" / Abstract: Not informed. / Mestrado / Histologia e Embriologia / Mestre em Biologia Buco-Dental

Acompanha memorial / Tese (livre-docencia) - Universidade estadual de Campinas, Faculdade de Odontologia de Piracicaba / Made available in DSpace on 2018-07-17T13:47:20Z (GMT). No. of bitstreams: 1 Usberti_AntonioCarlos_LD.pdf: 1485811 bytes, checksum: 7a33b9d0b6114413afedd2fd1839a319 (MD5) Previous issue date: 1979 / Resumo: Não informado / Abstract: Not informed / Tese (livre-docencia) - Univer / Odontopediatria / Livre-Docente em Odontologia

Orientador: Clotildes Fernandes Peters / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba / Made available in DSpace on 2018-07-17T15:36:02Z (GMT). No. of bitstreams: 1 Fonseca_ReginaHelenadeSouzaBarreto_M.pdf: 1357192 bytes, checksum: cd9e4286e365ce12f30a87df9ad3080e (MD5) Previous issue date: 1979 / Resumo: Foram utilizadas na presente pesquisa cento e dezoito ortopantomografias de indivíduos caucasóides, brasileiros, de ambos os sexos, residentes em Piracicaba, na faixa etária compreendida entre dezoito a vinte e um anos, portadores de maloclusão Classe I dentária. Estudou-se o comportamento dos terceiros molares inferiores nos estágios finais de desenvolvimento e erupção. Com esta finalidade, analisou-se: níveis de erupção (grupos I, II e III); estágios de desenvolvimento radicular, de acordo com a classificação estabelecida por NOLLA, 1960; bem como a inclinação axial mesial de cada terceiro molar inferior, de ambos os lados, em relação ao segundo molar inferior e ao plano mandibular. Com base nos dados registrados, concluiu-se que: 16,04% e 17,69% dos terceiros molares inferiores, para os sexos masculino e feminino respectivamente, encontravam se intra-ósseos (grupo I); 39,62% e 33,85% dos terceiros molares inferiores,para os sexos masculino e feminino respectivamente, haviam rompido a cripta óssea alveolar,sem contudo atingir o ponto de contato dos segundos molares (grupo II); 44,34% e 48,46% dos terceiros molares inferiores, para os sexos masculino e feminino respectivamente, ultrapassaram o ponto de contato dos segundos molares (grupo III); A maior porcentagem de terceiros molares inferiores no grupo I, foi constatada para os estágios 10 e 7 e no grupo II, para os estágios 10 e 9 de desenvolvimento radicular, respectivamente para os sexos masculino e feminino. Já no grupo III, a maior porcentagem de terceiros molares inferiores foi verificada no estágio 10 de desenvolvimento radicular, para ambos os sexos; No grupo I, à medida que os terceiros molares inferiores atingiram estágios mais avançados de desenvolvimento radicular, ocorreu aumento no valor médio do ângulo formado pela intersecção dos eixos longitudinais dos terceiros molares inferiores (MM) e, diminuição no valor médio do ângulo formado pela intersecção dos eixos longitudinais dos terceiros molares inferiores e, com o plano mandibular (3MPM), fenômeno este mais evidente para os indivíduos do sexo masculino. Nos grupos II e III, à medida que os terceiros molares inferiores atingiram estágios mais avançados de desenvolvimento radicular, verificou,se diminuição no valor médio de MM e, aumento no valor médio de 3MPM; Constatou-se dependência entre níveis de erupção estágios de desenvolvimento radicular, para ambos os sexos e lados considerados / Abstract: In this research project, one hundred and eighteen orthopantomografies were used of caucasian, Brazilians, of both sexes, residing in Piracicaba, in the eighteen to twenty one age group, who all presented Class I dental malocclusion. The behavior of the lower third molars in the final stage of development and eruption were studied. Consequently, an analysis was made of: levels of eruption (groups I, II and III); stages of radicular development, in accordance with the classification established by NOLLA, 1960; the axial, mesial sloping of the lower third molars, on both sides, in relationship to the lower second molars and to the mandibular planes. Based on the resulting data, it rnay be concluded that: 16.04% and 17.69% of the lower third molars, for males and females respectively, were intra-osseous (group I); 36.62% and 33.85% of the lower third molars, for males and females respectively, had erupted through the alveolar bone crest, without, however, having reached the point of contact of the lower second molars (group II), 44.34% and 48.46% of the lower third molars, for males and females, respectively, exceeded the point of contact of the lower second molars (group III); The greatest percentage of the lower third molars in group I, was found at stages 10 and 7, and in group II at stages 10 and 9 of the radicular development, for males and fema1es respectively. In group III, the greatest percentage of the lower third molars occurred at stage 10 of the radicular development, for both sexes. In group I, as the lower third molars reached more advanced stages of radicular development, there was an increase in the average value of the angle formed by the intersection of the longitudinal axes of the lower second and third molars (MM) and, a reduction in the average value of the angle formed by the intersection of the longitudinal axes of the lower third molars wi th the mandibular planes (3MPM), this phenomenon being more frequent among males. In groups II and III, as the lower third molars reached more advanced stages of radicular developnent there was a reduction in the average value of MM and an increase in the average value of 3MPM. An interaction between levels of eruption and stages of radicular development was found for bouth sexes / Mestrado / Ortodontia / Mestre em Ciências

Orientador: Antonio Carlos Usberti / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba / Made available in DSpace on 2018-07-18T06:33:07Z (GMT). No. of bitstreams: 1 Goraieb_SimoneMiranda_M.pdf: 8969469 bytes, checksum: 94e208360b6a3ab4f1aa9a96a7fc48e3 (MD5) Previous issue date: 1992 / Resumo: A autora buscou através dessa pesquisa verificar o com¬portamento do primeiro molar permanente inferior, em crianças brasileiras, leucodermas, de 24 a 84 meses de idade, portadoras de oclusão normal. Com base nos resultados obtidos, verificou que o relacionamento angular do longo eixo do primeiro molar permanente inferior com a base mandibular aumentou com a idade, assim como o ângulo formado por este dente com o plano oclusal e o segundo molar decíduo inferior. Já o ângulo formado com o bordo anterior da mandíbula diminuiu com a idade. No relacionamento angular das cúspides vestibulares do primeiro molar permanente inferior com o plano oclusal observou-se uma tendência à diminuição com o aumento da idade devido à curva ascendente descrita por este dente durante a sua irrupção, sendo que esta diminuição angular com ,o aumento da idade foi verificada no relacionamento entre as cúspides e a base mandibular, assim como o bordo anterior da mandíbula. Devido a verticalização deste dente durante o processo eruptivo, o ângulo formado entre as cúspides deste molar com a linha mais distal do segundo molar decíduo inferior aumentou com a idade. Quanto às relações lineares, verificou-se uma diminuição da distância da porção mais mesial do primeiro molar permanente inferior e a distância mais distal do segundo molar decíduo inferior, porém não houve contato entre estes dentes antes que entrassem em oclusão. Na comparação dos métodos para determinação dos estágios De desenvolvimento dentário verificou-se uma coincidência nos resultados / Abstract: This search has the purpose to check the i irst lower permanent molar environment in Brazilian white children normal occlusion, with 24 to 84 months oi age. Our results showed that the angular relationship of the First lower permanent molar axis with the mandibular base increased with age like this long axis teeth angle and the occlusal plane, and with the second lower deciduous molar. The angle established with the anterior border of mandible has decreased with age. The angular relationship of vestibular cuspids of first lower permanent molar with the occlusal plane has decreased with age because this teeth described an ascendent curve in eruption. The same decrease was observed in the relation of this cuspids And the mandibular base and so wi th the anterior border of mandible. We observed a verticalization of this teeth during the eruption because the angle of the cuspids of this molar with the distal line oi second deciduous molar increased. We noted that the distal line of second deciduous molar and the mesial line first lower permanent molar distance decreased with age, but the contact was not established while the teeth was in occlusion. The methods to verify the teeth development stages showed a coincidence in results / Mestrado / Radiologia / Mestre em Odontologia

Objetivo: Determinar la asociación del canal mandibular con las terceras molares evaluadas mediante radiografía panorámica y tomografía computarizada de haz cónico en pacientes de 18 a 85 años. Materiales y métodos: Se realizó un estudio de tipo observacional, transversal y retrospectivo. Se evaluó un total de 301 terceras molares inferiores de pacientes atendidos en el Instituto de Diagnostico Maxilofacial, las cuales fueron observadas mediante radiografía panorámica y tomografía computarizada. Resultados: Se encontró con mayor frecuencia que había 125 molares que estaban en no contacto con el canal mandibular (41.5%). Asimismo, al estudio tomográfico se encontró que había alta frecuencia de molares hacia inferior del canal mandibular (69.77%). Por otro lado, se encontró que existe asociación estadísticamente significativa al determinar la asociación del canal mandibular con las terceras molares en una radiografía panorámica y tomografía computarizada (p=0.000). Conclusión: Existe asociación al evaluar el canal mandibular con las terceras molares mediante radiografía panorámica y tomografía computarizada de haz cónico. Sin embargo, aquellos que presenten contacto del canal con las terceras molares deben ser considerados pacientes con alto riesgo de lesión del nervio. / Objective: To determine the association of mandibular canal with the third molars evaluated by panoramic radiography and cone beam computed tomography in patients aged 18 to 85 years. Materials and Methods: A study was observational, descriptive, cross-sectional and retrospective. A total of 301 lower third molars of patients attended at the Instituto de Diagnóstico Maxilofacial were used. Results: Assessing the association of mandibular canal with the third molars in a panoramic radiography was found more frequently 125 molars that were in no contact with the mandibular canal (41.5%). On the other hand, it was found high frequency of molars that were inferior to the mandibular canal (69.77%). Likewise, it was showed that exist statistically significant association in determining the association of the mandibular canal with the third molars in a panoramic radiography and computed tomography (p=0.000). Conclusion: There is association in assessing the mandibular canal with the third molars by panoramic radiography and cone beam computed tomography. However, those who present contact of canal with third molars should be considered patients with high risk of nerve injury. / Tesis

Objetivo: Determinar la anatomía de las raíces y conductos radiculares en segundas molares permanentes mandibulares (SMPM) mediante tomografía computarizada de haz cónico Materiales y Métodos: Se analizaron 400 segundas molares mandibulares permanentes vistas en tomografías de pacientes atendidos en el Instituto de Diagnóstico Maxilofacial (IDM) en el periodo enero – junio de 2015. Se analizó la anatomía de la pieza en los planos axial y sagital, donde se determinó el número de raíces y conductos, el tipo de conducto según la clasificación de Vertucci en la raíz mesial y distal, la presencia de conductos en forma de C y el tipo de conductos en C según la clasificación de Melton. Resultados: Se encontró SMPM con dos raíces 287 (71.75%). Por otra parte, se observó piezas dentarias de tres conductos 282 (70.50%). Asimismo, Se observó que para el tipo de conductos en la raíz mesial se evidenció del Tipo II 66 (16.50%) y del Tipo III 66 (16.50%). Del mismo modo, el tipo de conducto en la raíz distal más hallado fue del Tipo I 357 (89.25%). Además, para la presencia de conducto en C se observó que en 113 (28.25%) piezas estaba presente y en 287 (71.75%) ausente. Para el tipo de conducto en C de mayor predominancia fue el tipo “c3” 61 (15.25%). Conclusiones: Se puede concluir que las SMMP presentan dos raíces con tres conductos radiculares y que la configuración de conductos en la raíz mesial es del Tipo II y III, mientras que la raíz distal es el Tipo I. Asimismo, existe gran prevalencia de conductos en forma de C, siendo el tipo “c3” el más prevalente. / Objective: Determine the anatomy of roots and root canals in mandibular second permanent molars by cone beam computed tomography Materials and Methods: 400 mandibular second permanent molars views in CT of patients treated at the Instituto de Diagnóstico Maxilofacial (IDM) in a period January - June 2015. The anatomy of the pieces was analyzed in the axial and sagittal planes, which determined the number of roots and root canals, canals type according to the classification of Vertucci in the mesial and distal root, the presence of C-shaped canals and type of C-shaped canals according to the classification of Melton. Results: SMMP was found with two roots 287 (71.75%). On the other hand, three Canals was observed in 282 (70.50%) teeth. It was also noted that for the type of canals in the mesial root of Type II showed 66 (16.50%) and Type III showed 66 (16.50%). Also, in distal root was found Type I 357 (89.25%). In addition to the presence of C-shaped root canals system was observed in 113 (28.25%) pieces and in 287 (71.75%) was absent. Finally, for the type of C-shaped canals the most predominant type was "c3" 61 (15.25%). Conclusion: We conclude that the SMMP have two roots with three root canals and canals settings in the mesial root is Type II and III, while the distal root is the type I. There is also a high prevalence of ducts C-shaped, being the most prevalent type "c3". / Tesis

Den vanligaste bettavvikelsen som behandlas bland barn och ungdomar är trångställning. När funktionellt och estetiskt störande trångställning i överkäken ska behandlas kan man vanligtvis ta bort tänder eller flytta de första stora kindtänderna (sexårständerna) bakåt för att sedan göra tandraden jämn. Det finns flera vetenskapliga studier som beskriver behandlingseffekterna av olika tandställningar för att flytta de stora kindtänderna bakåt. Det är oklart vilken typ av tandställning som är effektivast och i allmänhet saknas ett evidensbaserat perspektiv. Det är också oklart vid vilken tidpunkt som det är mest effektivt att flytta sexårständerna bakåt, dvs. före eller efter det att de andra stora kindtänderna kommit på plats i tandbågen. Licentiatavhandlingen är baserad på följande studier: Med randomiserad kontrollerad studiedesign var syftet i Studie I att utvärdera behandlingseffekterna av två olika tandställningar för att flytta överkäkens sexårständer bakåt i tandbågen. Fyrtio patienter randomiserades, 20 till en avtagbar tandställning (extraoralt drag) och 20 patienter till en fast tandställning. Studie II hade syftet att analysera när behandlingen var effektivast, dvs. att tandreglera sexårstanden bakåt innan eller efter att den bakomvarande stora kindtanden kommit på plats i tandbågen. I ramberättelsen utfördes dessutom en systematisk litteraturöversikt med syfte att på ett evidensbaserat sätt utvärdera olika metoders effektivitet i att tandreglera de stora kindtänderna bakåt i tandbågen och att göra en kvalitetsbedömning av de utvalda studierna. Översikten omfattade tidsperioden från januari 1966 t o m april 2008 vilket innebar att bedömningen även inkluderade studierna I och II. Konklusioner: • Fast tandställning var effektivare än avtagbar för att flytta de första stora kindtänderna bakåt i tandbågen. • Sidoeffekter i form av 1-2 mm ökat överbett (förankringsförlust) uppstod vid behandling med fast tandställning medan avtagbar tandställning bidrog till minskat överbett. • Det var mest effektivt att tandreglera sexårstanden bakåt innan den bakomvarande stora kindtanden kommit på plats i tandbågen. • I litteraturen fanns det begränsat bevisvärde för att fast tandställning är mer effektiv än avtagbar för bakåtförflyttning av första stora kindtanden i överkäken och att sidoeffekter (1-2 mm ökat överbett) blir följden av den fastsittande apparaturen. • Det är fortfarande svårt att via litteraturen dra några slutsatser om vilken typ av fast tandställning som är mest effektiv och därför behövs det ännu mer forskning om detta. / Maxillary molar distalization is a frequently used treatment method in cases with crowding associated with dental Class II molar relationship or Class I skeletal relationship. Despite the fact that several studies have been published concerning the treatment outcome of different appliances for distal movement of maxillary molars, it is still difficult to interpret the results and evidence presented in these studies because a variety of study designs, sample sizes and research approaches exists. In view of this, well-designed randomized clinical trials comparing patient compliant and non patient compliant extra- and intraoral appliance as methods of distalizing maxillary first molars is desirable as well as a systematic review of the present knowledge. Furthermore, there is a need for further evaluations and knowledge about the most appropriate time to move maxillary molars distally, i.e. evaluation of movement efficiency including anchorage loss before and after eruption of second maxillary molars. The overall aim of this thesis was to evaluate the outcome measures by distalizing maxillary molars with either the conventional extraoral traction (EOA) or a intraoral fixed appliance (IOA) and also to evaluate the optimal timing of distalizing treatment – either before or after the eruption of the second maxillary molars. This thesis was based on two studies and a systematic review included in the frame story: Paper I was a randomized controlled trial involving 40 patients in orthodontic treatment. The study evaluated and compared the treatment effects of an EOA and an IOA for distal molar movement of maxillary first molars. Paper II was a retrospective study involving 40 patients evaluating the maxillary molar distalization and anchorage loss in two groups, one before (MD 1 group) and one after eruption of second maxillary molars (MD 2 group). The systematic literature search was made in 4 different databases to determine what appliances for distal molar movement of maxillary molars have been evaluated in an evidence based manner and with focus on the most efficient method and outcome of molar movement and anchorage loss. Also, the evidence-based standard of Paper I and II was evaluated. These conclusions were drawn: • The IOA was more effective than the EOA to create distal movement of maxillary first molars, and thus, for the clinician the IOA is the most favourable method. • Moderate and acceptable anchorage loss was produced with the IOA implying increased overjet whereas the EOA created decreased overjet. • The two appliances did not have any considerable corrective effect on Class II skeletal relationships and these appliances shall therefore only be used in cases of moderate dental sagittal discrepancies and arch-length deficiencies. • The most opportune time to move maxillary first molars distally is before eruption of the second molars, since molar movement is then most effective and the anchorage loss lesser. • There is limited level of evidence that intraoral appliance is more efficient than extraoral to create distal movement of maxillary molars and that anchorage loss was produced with the intraoral appliance. • It is still difficult to draw any conclusions as to which of the intraoral appliances that were the most effective, and therefore, more RCTs are desireable.

A proposta deste estudo consistiu em avaliar, por meio de telerradiografias em norma lateral, as alterações dentoesqueléticas e tegumentares promovidas pelo aparelho distalizador intrabucal Distal Jet. A amostra foi composta por 44 pacientes, divididos em dois grupos. O grupo 1, experimental, constituí-se de 22 pacientes, 5 do gênero masculino e 17 do feminino, com má oclusão de Classe II, sendo que, 72,72% apresentavam ½ Classe II, 18,18% ¼ de Classe II e 9,09% ¾ de Classe II. A idade inicial variou entre 10,54 anos e 14,77 anos (média de 12,71 anos). Estes pacientes receberam o tratamento com o distalizador intrabucal Distal Jet, por um período médio de 1,20 anos. O grupo 2, controle, composto por 22 pacientes, 13 do gênero masculino e 9 do feminino, com idade ao início da observação variando entre 11,03 e 14,63 anos (média de 12,27 anos), apresentava má oclusão de Classe II não tratada, e foram observados por um tempo médio de 1,18 anos. Realizou-se a compatibilização dos grupos de acordo com a idade, tempo de tratamento/observação, severidade da má oclusão e variáveis cefalométricas iniciais. Utilizou-se o teste t de student, para amostras independentes, a fim de se comparar as idades iniciais e finais, tempo de tratamento/observação, variáveis iniciais cefalométricas e alterações médias reais na comparação intergrupos. A severidade da má oclusão entre os grupos foi analisada pelo teste do Qui-quadrado. Para avaliar as alterações iniciais e finais dentro do grupo experimental, realizou-se o teste t para amostras dependentes. O distalizador Distal Jet não alterou o posicionamento ântero-posterior da maxila e mandíbula, entretanto, provocou um aumento no padrão de crescimento facial decorrente da alteração significante do ângulo do plano mandibular (FMA). Os primeiros molares superiores apresentaram uma distalização significante, porém, não sofreram uma inclinação distal e extrusão estatisticamente significantes. Os segundos molares superiores inclinaram-se distalmente, extruíram e distalizaram significantemente. O efeito recíproco do Distal Jet, sobre a unidade de ancoragem, promoveu uma significante vestibularização e protrusão dos incisivos superiores, bem como uma mesialização dos primeiros pré-molares superiores, repercutindo no aumento do overjet. Não ocorreram alterações significantes na extrusão dos primeiros pré-molares e incisivos superiores, no overbite e no perfil facial. / This study evaluated the dentoskeletal and soft tissue changes promoted by the intraoral distalizer Distal Jet, by analysis of lateral cephalograms. The sample was composed of 44 patients, divided into two groups, as follows. Group 1 (study group) was composed of 22 patients, being 5 males and 17 females, with Class II malocclusion, among which 72,72% exhibited ½ Class II, 18,18% ¼ Class II, and 9,09% ¾ Class II. The initial age ranged from 10,54 years to 14,77 years (mean 12,71 years). These patients were treated with the intraoral distalizer Distal Jet for a mean period of 1,20 years. Group 2 (control group) comprised 22 patients, being 13 males and 9 females, aged 11,03 to 14,63 years (mean 12,27 years) at the onset of follow-up, presenting with untreated Class II malocclusion, who were followed for a mean period of 1,18 years. The groups were rendered compatible as to age, period of treatment/observation, severity of malocclusion and initial cephalometric variables. The Student t test for independent samples was applied to compare the initial and final ages, period of treatment/observation, initial cephalometric variables and actual mean changes in the comparison between groups. The severity of malocclusion between groups was analyzed by the chi-square test. The initial and final changes for the study group were evaluated by the t test for dependent samples. The Distal Jet distalizer did not change the anteroposterior positioning of maxilla and mandible, yet promoted an increase in facial growth pattern due to a significant change in mandibular plane angle (FMA). The maxillary first molars exhibited significant distalization, yet did not present statistically significant distal inclination and extrusion. The maxillary second molars presented significant distal inclination, extrusion and distalization. The reciprocal effect of Distal Jet on the anchorage unit promoted significant buccal tipping and protrusion of maxillary incisors, as well as mesialization of the maxillary first premolars, leading to an increased overjet. There were no significant changes in the extrusion of maxillary first premolars and incisors, overbite and facial profile.