Renata Bianco Consolaro’s research while affiliated with Lutheran University of Brazil and other places

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Publications (40)


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Cementum, Apical Morphology and Hypercementosis: A Probable Adaptive Response of the Periodontal Support Tissues and Potential Orthodontic Implications
  • Article
  • Full-text available

February 2012

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1,314 Reads

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40 Citations

Dental Press Journal of Orthodontics

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Renata B. Consolaro

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Leda A. Francischone

Information about orthodontic movement of teeth with hypercementosis is scarce. As cementum deposition continues to occur, cementum is expected to change the shape of the root and apex over time, but this has not yet been demonstrated. Nor has it ever been established whether it increases or decreases the prevalence of root resorption during orthodontic treatment. The unique biological function of the interconnected network of cementocytes may play a role in orthodontic movement and its associated root resorptions, but no research has ever been conducted on the topic. Unlike cementum thickness and hypercementosis, root and apex shape has not yet been related to patient age. A study of the precise difference between increased cementum thickness and hypercementosis is warranted. Hypercementosis refers to excessive cementum formation above and beyond the extent necessary to fulfill its normal functions, resulting in abnormal thickening with macroscopic changes in the tooth root, which may require the delivery of forces that are different from conventional mechanics in their intensity, direction and distribution. What are the unique features and specificities involved in moving teeth that present with hypercementosis? Bodily movements would be expected to occur, since inclination might prove difficult to achieve, but would the root resorption index be higher or lower?

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Bone reaction capability and the names of inflammatory bone disorders in endodontic clinical practice

January 2012

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54 Reads

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1 Citation

Reactional inflammatory bone diseases are common in the jaws and are associated with periapical lesions. A chronic dentoalveolar abscess represents a chronic purulent osteitis, just like periapical granuloma is a chronic granulomatous osteitis. Imagiologically, chronic inflammatory periapical injuries are osteitis which manifest themselves either as bone rarefactions, either as sclerotic areas. The terms "rarefying diffuse lesion" or "sclerosing at the periapex" are used in reports to identify chronic inflammatory periapical lesions that represent true reactive inflammatory bone diseases with specific names by the direct relationship with the teeth as dentoalveolar abscess and periapical granulomas. When teeth are extracted they can leave imagiologically detected structural changes, such as bone sclerosis and rarefactions, without the possibility of establishing a cause and effect relationship, making it hard to provide a secure diagnosis. In planning, a previous diagnosis of bone status implies recognizing injuries and pathological situations. The standardization of nomenclature and concepts can facilitate communication and the establishment of uniform protocols and behaviors.


FIGURA 1-O plexo dentogengival tem anastomoses com vasos advindos do ligamento periodontal (1ª), da mucosa bucal (2ª) e do osso alveolar (3ª) na região da inserção conjuntiva junto à superfície radicular cervical (esquema modificado de Glickman 4 ). 
Orthodontic movement does not induce external cervical resorption (ECR) or Orthodontic movement does not change gingival color and volume, and does not induce gingival inflammation

December 2011

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398 Reads

Dental Press Journal of Orthodontics

Nesse trabalho, procurou-se explicar - anatômica e funcionalmente - como se estrutura e se organiza a região cervical dos dentes, para fundamentar os seguintes questionamentos: 1) Por que ocorre Reabsorção Cervical Externa na dentição humana?; 2) Por que na gengivite e na periodontite não se tem Reabsorção Cervical Externa?; 3) Por que depois do traumatismo dentário e da clareação interna pode ocorrer a Reabsorção Cervical Externa?; 4) Por que o movimento ortodôntico não altera a cor e o volume gengival durante o tratamento?; 5) Por que o movimento ortodôntico não induz Reabsorção Cervical Externa, mesmo sabendo-se que a região cervical pode ser muito exigida? A existência de antígenos sequestrados na dentina, a presença de janelas de dentina na região cervical de todos os dentes, a reação do epitélio juncional e a distribuição dos vasos sanguíneos gengivais podem justificar por que a Reabsorção Cervical Externa não ocorre e nem a cor e o volume gengival são alterados no movimento ortodôntico.





Figure 1-Orthodontic appliance used to achieve mesial inclination of the maxillary left first molar, anchored on the maxillary incisors, delivering a force of 75g  
Figure 2-Periodontal morphological changes induced on the cervical region of the distobuccal root submitted to intense forces (A and B). Experimental group, after 3 days of induced tooth movement on the maxillary first molar of rats. (A) Note the normal aspect of the pulp (P)  
Analysis of the dentin-pulp complex in teeth submitted to orthodontic movement in rats

January 2009

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125 Reads

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13 Citations

Journal of Applied Oral Science

In order to microscopically analyze the pulpal effects of orthodontic movement, 49 maxillary first molars of rats were submitted to orthodontic appliance composed of a closed coil spring anchored to the maxillary incisors, placed for the achievement of mesial movement. Ten animals were used as the control group and were not submitted to orthodontic force; the other animals were divided into groups according to the study period of tooth movement, namely 1, 2, 3, 4, 5, 6 and 7 days. The investigation of pulp and periodontal changes included hyalinization, fibrosis, reactive dentin and vascular congestion. Statistical evaluation was performed between control and experimental groups and between periods of observation using non-parametric chi-square, Kruskal-Wallis and Dunn tests. There was no statistically significant difference concerning pulpal changes between control and experimental groups nor between periods of observation. The control group, at 3 and 5 days, revealed greater hyalinization of the periodontal ligament (p<0.05), whereas root resorption was significantly greater at 5 and 7 days (p<0.05). No morphological change from the effect of induced tooth movement could be found in the dentin-pulp complex. In addition, no inflammatory or pulp degeneration, detectable in optical microscopy, was found in experimental groups.



FiguRa 3 -Proporções numéricas dos vários componentes do corpo humano, nos vários níveis de grandeza: células, cromossomos e genes.
FiguRa 7 -Exemplo de heredograma em 4 gerações de uma família quanto à transmissão hereditária da cor dos olhos.
Conceitos de genética e hereditariedade aplicados à compreensão das reabsorções dentárias durante a movimentação ortodôntica

May 2004

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860 Reads

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5 Citations

Revista Dental Press de Ortodontia e Ortopedia Facial

Imagine o mundo sem telefone ou sem computador e internet. Em surtos cíclicos, os novos conhecimentos mudam nosso estilo de vida e criam necessidades. Um exemplo atual desta situação encontra-se na causa de certos fenômenos e doenças: tudo se explica a partir da genética e da hereditariedade. Deve-se tomar cuidado para evitar o exagero. As conseqüências de procedimentos clínicos, os efeitos colaterais e as iatrogenias passaram a possuir atributos genéticos, quase sempre não fundamentados em estudos experimentais. Quando o novo está amplamente difundido e não profundamente conhecido se estabelece temporariamente um poder mágico de sedução e uso. Desta forma procura-se atribuir à genética e à hereditariedade como causa primária das reabsorções dentárias na prática ortodôntica 1,10,16. A genética e hereditariedade mescladas à biologia molecular constituem um dos surtos de novos conhecimentos e tecnologias pelo qual a humanidade está passando, remetendo-nos a uma renovação conceitual ou reciclagem. Apesar das novas informações, o dia-a-dia e a necessidade de sobrevivência superpõem-se e o Profissional Clínico, mesmo consciente da importância da atualização para o seu trabalho, não tem como viabilizar no tempo e no espaço, a aquisição destes novos conceitos a partir de uma literatura fragmentada e multifacetada. Neste trabalho propusemo-nos a discorrer, com clareza e simplicidade, sobre os conceitos elementares necessários à compreensão dos mecanismos da genética, da hereditariedade e da biologia molecular. Às vezes beiramos a heresia acadêmica a favor do entendimento. Para os iniciados no assunto este artigo pode parecer muito básico, mas procuramos nos dirigir ao Profissional Clínico, especialmente aos relacionados com a prática ortodôntica e ortopédica.


O primeiro estudo sobre hereditariedade relacionada com as reabsorções dentárias em Ortodontia: uma análise crítica do trabalho de Newman

May 2004

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161 Reads

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3 Citations

Revista Dental Press de Ortodontia e Ortopedia Facial

Na literatura pertinente à relação entre reabsorções dentárias em Ortodontia e hereditariedade destacam-se quatro artigos: Newman21, Harris, Kineret, Tolley16, Al-Qawasmi et al.1 e de Al-Qawasmi et al2. O trabalho de Newman21 possui o mérito do pioneirismo, mas apesar disto não conseguiu provar ou mostrar fortes evidências da relação entre reabsorções dentárias e hereditariedade. As falhas metodológicas e o pequeno número de gerações e famílias pesquisadas não permitiram afirmações conclusivas, como reconhece explicitamente o próprio autor. A principal falha está na amostra, constituída por raízes curtas sem preocupar-se com a causa das mesmas, incluindo-se raízes curtas próprias do desenvolvimento dentário. Também não houve critério definido para diagnosticar o que é uma raiz curta, foi um critério muito subjetivo. No final nota-se um pequeno número de famílias e gerações, pois foram analisados pais e filhos em apenas 17 heredogramas. Durante o trabalho não houve preocupação com a padronização do tipo de discrepâncias faciais e dentárias, do tipo de má oclusão, da morfologia radicular ou da crista óssea, do tipo de diagnóstico e plano de tratamento, nem tampouco da técnica e dos operadores dos tratamentos ortodônticos. No final considerou-se como causa de maior reabsorção de dentes com raízes curtas, após o tratamento ortodôntico, um potencial de reabsorção ao qual atribui-se um caráter genético, mas sem qualquer fundamentação nos resultados. Hoje, sabe-se que as raízes curtas quando movimentadas apresentam maior índice de reabsorção, pois concentram mais forças no ligamento periodontal, com maior possibilidade lesão na camada cementoblástica e conseqüente reabsorção radicular8, 9, 14,15, 23.


Citations (20)


... For example, excessive stress concentrations in the posterior region could increase the risk of root resorption and damage to the periodontal membrane, potentially leading to irreversible changes in the tooth's support structure. In contrast, an even stress distribution can promote more controlled tooth movements and enhance treatment stability, especially during mandibular advancement (Consolaro et al., 2023). Our study observed that when the mandibular advancement distance was equal or slightly excessed the occlusal opening distance, the stress on posterior PDL decreased and became more evenly distributed. ...

Reference:

Biomechanical effects of different mandibular movements and torque compensations during mandibular advancement with clear aligners: a finite element analysis
Do submerged roots hinder orthodontic treatment or the use of implants?

Dental Press Journal of Orthodontics

... An early diagnosis of canine displacement can provide clinicians with the opportunity for timely intervention and prevention of sequelae related to tooth impaction, such as malocclusion or root resorption. [6][7][8][9] Radiography has been widely employed to discern anatomical structures and the positioning of unerupted teeth. Although various techniques -such as periapical, occlusal, panoramic, lateral, or posteroanterior cephalometry-have been utilized for the prediction and localization of impacted canines, 10-12 the advent of 3D imaging has offered remarkable opportunities that were not achievable with previous methods. ...

Canines and inflammatory external apical resorption in healthy maxillary lateral incisors due to occlusal trauma: when to detect the position of maxillary canines, to prevent it?

Dental Press Journal of Orthodontics

... Early evaluation of the appropriate type of radiographs to monitor the timing of FPM eruption is important to detect the problem and propose the opportunity to avoid possible disadvantages. If diagnosed between 5 and 6 years of age, a "watchful waiting" observation approach with appropriate follow-up may be indicated, where up to two-thirds are expected to selfcorrect [20] . Self-correction becomes more unlikely approaching the age of 7 years, where continued "locking" of the FPM with the severely absorbed second primary molar usually requires intervention. ...

The two extremes of physiological tooth resorption in primary tooth with or without the permanent successor tooth

Dental Press Journal of Orthodontics

... Microscopically, these structures consist of dense cortical bone, typically well-demarcated from surrounding tissues. They may occasionally contain trabecular bone, but are predominantly made up of cortical bone and generally lack significant vascularity or signs of infection [1][2][3]15]. These tori can be beneficial in some cases; for instance, there are reports of related growths being surgically removed for regenerative purposes and used as a donor site for an autogenous bone graft [4,14]. ...

Palatal and Mandibular Tori: diagnosis, clinical significance and conceptual basis
  • Citing Article
  • May 2019

Journal of Clinical Dentistry and Research

... In the context of periapical disease, orthodontic movement of teeth may affect preexisting lesions [4]. While orthodontic forces are typically light, gradual, and non-abrupt, and have minimal impact on the healing of periapical lesions [23], complications can still arise, especially in endodontically treated teeth. These mild forces compress the periodontal ligament slightly, promoting tooth movement without disrupting the tissue and cellular processes involved in apical and periapical repair. ...

Orthodontics and Endodontics: clinical decision-making

Dental Press Journal of Orthodontics

... However, a lower prevalence has been reported in adult orthodontic patients [1][2][3][4]. This transverse deficiency [5], or maxillary hypoplasia [6], is one of the main problems related to facial growth that should be corrected as it is diagnosed, with the objective to reestablish a normal transverse skeletal relationship between maxillary and mandibular basal bones to obtain a stable occlusion [7]. ...

Jaws can be referred to as narrow or hypoplastic, but the term "atresia" is inaccurate!

Dental Press Journal of Orthodontics

... The response to mechanical stimuli of a tooth that has experienced trauma is different from that of a healthy tooth, and it is impossible to predict how traumatized teeth will behave during orthodontic movement [15]. Severe consequences such as accelerated root resorption [9] and pulp tissue necrosis [9,15,16] may occur during orthodontic movement post trauma, and it is recommended that treatment be carried out with caution [16]. ...

There is no pulp necrosis or calcific metamorphosis of pulp induced by orthodontic treatment: biological basis

Dental Press Journal of Orthodontics

... Após a remoção de 97 duplicatas, os títulos/resumos de 59 referências foram avaliados. Um total de 28 artigos foram selecionados para leitura do texto completo e oito preencheram os critérios de elegibilidade e foram incluídos nesta revisão sistemática [2][3][4][12][13][14][15] ...

“Maxillary lateral incisor partial anodontia sequence”: A clinical entity with epigenetic origin

Dental Press Journal of Orthodontics

... All evidence has shown that the face is formed by leveling of the embryonic processes, except at a very specific and central point of the hard palate, from which anterior and posterior leveling is also established. 6 These concepts, of face formation mechanisms, and their evolution -from the fusion to the leveling -have been meticulously reviewed, described and presented in an article published in 2017 6 (Figs 2 and 3). ...

Mecanismos de formação da face: o que ocorre é nivelamento, e não fusão, dos processos
  • Citing Article
  • January 2017

Revista Clínica de Ortodontia Dental Press