Computer‐simulated bi‐directional alveolar distraction osteogenesis

Abstract

Preoperative 3-D simulation is a potentially valuable tool for treatment of the morphologically complicated oral-maxillofacial region. More realistic surgical simulations are anticipated with ongoing effort to collect and integrate clinical data into next-generation software.

Simultaneous Sinus Lifting and Alveolar Distraction of a Severely Atrophic Posterior Maxilla for Oral Rehabilitation with Dental Implants

“…The average data for all of the measured simulated implant positions in the atrophic posterior maxilla for each patient were summarized as the preoperative residual bone height (Tables 1 and 2). It also simulates the 3D changes with gradual repositioning following alveolar distraction, considering the intermaxillary relationship with occlusion, as reported previously [14]. …”

“…We were able to simulate the entire process of alveolar reconstruction with our technique, including alveolar distraction, the shape of the maxillary sinuses for determining the osteotomy line, the amount of sinus lifting, and the subsequent oral implant placement with parameters that included realistic transport segment lengths, angulation, and prosthesis sizes with easy selection from a very wide variety of preset modules [13, 14]. In the future, one may be able to customize prebent plates for the distractor device preoperatively in cases of complicated reconstruction of a severely atrophic maxilla using distractors.…”

“…This is less invasive and yet sufficient for performing simultaneous sinus lifting with an equal-volume mixture of particulate autogenous cancellous bone/ β -TCP and placing the distractor [12]. In addition, the secure protection of the surrounding mucoperiosteum, which promotes osteogenic cell and active bone formation with a broad vascular network, plays a role in ensuring nutrition for the healing surgical wound, bone formation, and bone regeneration for simultaneous sinus lifting with alveolar distraction [11, 14]. The closest strategy to our technique is controlling the osteotomized alveolar segment using vertical alveolar distractors with gradual distraction, while managing the direction and amount of distraction.…”

Alveolar osseous distraction by the combined use of modified miniplates and an orthodontic appliance. A technical note

“…The sagittal and vertical alveolar distraction vectors can be calculated and visualised on plaster models and on lateral teleradiography X-rays. Calculating and visualising of these vectors on 3D models and virtually have been reported (Kanno et al, 2008) but the transfer of the virtual planning to the OR is not easy and plaster models are a cheap and practical solution (Fig. 1).…”

Distraction Osteogenesis: Evolution and Contemporary Applications in Orthodontics

“…The last few years have seen exciting advances in computer-assisted surgery (Gateno, Teichgraeber & Aguilar, 2000;Meehan, Morris, Maurer, Antony, Barbagli, Salisbury & Girod, 2006;Kanno, Mitsugi, Sukegawa, Hosoe & Furuki, 2008;Markiewicz & Bell, 2011). Computer-based three-dimensional scans will reconstruct the craniofacial skeleton and enable surgeons to virtually design, plan, and execute osteotomies.…”