Pulpal and radicular changes following maxillary subapical corticotomy

Yoshikawa, Yoshiyasu; Deguchi, Toshio; Eda, Shigeo

doi:10.1111/j.1600-9657.1992.tb00252.x

Cited by 4 publications

(1 citation statement)

References 4 publications

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“…The force level was decided on the basis of that used in a previous animal study by Yoshikawa, in which a headcap was used after maxillary block corticotomy in monkeys, followed by application of 400 g of retractive force on either side. 21 Since there are obvious differences in the maxillofacial anatomy of beagles and humans, direct extrapolation of the results of this study would be difficult. Nonetheless, several very interesting findings were noted in this study.…”

Section: Discussionmentioning

confidence: 99%

Histologic assessment of the biological effects after speedy surgical orthodontics in a beagle animal model: a preliminary study

et al. 2011

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Objective: Speedy surgical orthodontics (SSO), an innovative orthodontic treatment, involves the application of orthopedic forces against temporary skeletal anchorage devices following perisegmental corticotomy to induce movement of specific dental segments. Herein, we report the biological effects of SSO on the teeth and periodontal structures. Methods: Five beagle dogs were divided into 2 groups and their 6 maxillary incisors were retracted en masse by applying 500 g orthopedic force against a single palatal mini-plate. Retraction was performed without and with perisegmental corticotomy in groups I and II, respectively. All animals were killed on the 70th day, and their periodontal structures were processed for histologic analyses and scanning electronic microscopy (SEM). The linear distance between the third maxillary incisor and canine was used as a benchmark to quantify the retraction amount. Results: Retraction was markedly faster and retraction amount greater in group II than in Group I. Surprisingly, Group II did not show any root resorption despite extensive retraction, while Group I showed prominent root surface irregularities. Similarly, SEM showed multiple resorption lacunae in Group I, but not in Group II. Conclusions: SSO is an effective and favorable orthodontic approach for major en masse retraction of the maxillary anterior teeth.

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Section: Discussionmentioning

confidence: 99%

Histologic assessment of the biological effects after speedy surgical orthodontics in a beagle animal model: a preliminary study

et al. 2011

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Discussion

Thomas¹

1994

Journal of Oral and Maxillofacial Surgery

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Perte de vitalité : influence des procédures orthodontiques

Bernard-Granger¹,

Gebeile-Chauty²

2015

Orthod Fr

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Les pertes de vitalité pulpaires, certes rares, entraînent des pertes de sensibilité et des changements de teinte des dents concernées avec possibilité de nécrose. Avant de débuter le traitement orthodontique, il convient d’identifier les dents à risque (dents ayant subi un traumatisme, même occlusal...) sachant que, si un traitement endodontique est à réaliser, il est préférable de le faire avant de débuter les forces orthodontiques. Les lampes à polymériser ne semblent plus poser de problème (à l’exception des lampes halogènes haute intensité). Les disjonctions chez l’enfant, les ostéotomies de Le Fort I, les corticotomies, les ostéotomies sagittales bilatérales et les génioplasties entraînent une ischémie généralement transitoire sans atteindre un niveau pathogène. La pose des mini-vis et mini-plaques peut être iatrogène en cas de contact radiculaire. Les chances de réparation dépendent du délai avant le repositionnement de la mini-vis et de la nature du tissu touché.

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Pulpal and radicular changes following maxillary subapical corticotomy

Cited by 4 publications

References 4 publications

Histologic assessment of the biological effects after speedy surgical orthodontics in a beagle animal model: a preliminary study

Histologic assessment of the biological effects after speedy surgical orthodontics in a beagle animal model: a preliminary study

Discussion

Perte de vitalité : influence des procédures orthodontiques

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