Histologic Findings 8 Weeks After Customized Alveolar Ridge-Splitting Technique

2021 ◽  
Vol 41 (5) ◽  
pp. e191-e198
Author(s):  
Panpicha Maketone ◽  
Martin Leung ◽  
Marco Bergamini ◽  
Yung Yu ◽  
Stuart Froum ◽  
...  
2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Fabian Duttenhoefer ◽  
Peter Varga ◽  
Dominik Jenni ◽  
Leonard Grünwald ◽  
Luisa Thiemann ◽  
...  

The alveolar ridge splitting technique (ARST) offers an alternative to classic ridge augmentation techniques for successful insertion of dental implants. However, the buccal lamella is at risk of fracturing during ARST distraction. To better understand the fracture mechanisms and displacement limits of the split lamella, this study conducted biomechanical tests on human cadaveric maxilla specimens having extremely atrophied alveolar ridges treated with ARST. A total of 12 standardized alveolar splits were prepared on the maxillae of 3 elderly female donors using an oscillating piezoelectric saw. Mimicking the surgical distraction process of the lamella, each split was tested to failure using a dental osteotome attached to the crosshead of an electromechanical testing system. All specimens were scanned by means of high-resolution peripheral quantitative computed tomography prior to and post testing to evaluate split geometries and failure modes. Split stiffness, failure force, and displacement were 27.4 ± 18.7  N/mm, 12.0 ± 8.4  N, and 0.97 ± 0.31  mm, with no significant differences between anatomical sides and split locations ( p ≥ 0.17 ). Stiffness correlated significantly with failure force ( R 2 = 0.71 , p < 0.01 ). None of the alveolar split widths correlated significantly with the outcomes from biomechanical testing ( p ≥ 0.10 ). The results suggest that simple geometrical measures do not predict the allowed extent of lamella distraction prior to failure. More sophisticated methods are required for surgical planning to optimize the ARST outcomes. Still, the present study may advocate a clinical protocol for the maxilla where the implant site is prepared directly after osteotomy setting and immediately before full lamella dislocation, when the lamella is still stable, resistant to mechanical stress, and bone loss caused by the abrasion of the burr is minimized.


2014 ◽  
Vol 18 (1) ◽  
pp. 41-47
Author(s):  
Ioannis Papathanasiou ◽  
Georgios Vasilakos ◽  
Sotirios Baltiras ◽  
Lampros Zouloumis

Abstract Insufficient width of the alveolar ridge often prevents ideal implant placement. Guided bone regeneration, bone grafting, alveolar ridge splitting and combinations of these techniques are used for the lateral augmentation of the alveolar ridge. Ridge splitting is a minimally invasive technique indicated for alveolar ridges with adequate height, which enables immediate implant placement and eliminates morbidity and overall treatment time. The classical approach of the technique involves splitting the alveolar ridge into 2 parts with use of ostetomes and chisels. Modifications of this technique include the use of rotating instrument, screw spreaders, horizontal spreaders and ultrasonic device. The purpose of this article is to thoroughly describe all the different approaches in ridge splitting technique. 2 interesting clinical cases of narrow alveolar ridges treated with ridge splitting and immediate implant placement are also presented.


2020 ◽  
Vol 3 (1) ◽  
pp. 37-43
Author(s):  
N Agarwal ◽  
U Y Pai ◽  
S J Rodrigues ◽  
S Baral

Horizontal lack of residual ridge width can complicate the implant procedures. Therefore, ridge construction prior to implant placement is a biomechanical requirement. Guided bone regeneration, bone grafting, alveolar ridge splitting and combinations of these techniques are used for the lateral augmentation of the alveolar ridge. The ridge splitting technique with simultaneous implant placement seems to be a minimally invasive treatment option for horizontal augmentation of narrow alveolar ridges with adequate vertical height. This paper thoroughly describes a segmental ridge splitting technique with both vertical and horizontal osteotomy cuts followed by the use of chisel and mallet to lateralise the buccal bone which was accompanied by GBR and simultaneous implant placement.


Materials ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4036
Author(s):  
Dorottya Pénzes ◽  
Fanni Simon ◽  
Eitan Mijiritsky ◽  
Orsolya Németh ◽  
Márton Kivovics

Background: Alveolar atrophy following tooth loss is a common limitation of rehabilitation with dental implant born prostheses. Ridge splitting is a well-documented surgical method to restore the width of the alveolar ridge prior to implant placement. The aim of this case series is to present a novel approach to ridge expansion using only autogenous bone blocks. Methods: Patients with Kennedy Class I. and II. mandibles with insufficient bone width were included in this study. Ridge splitting was carried out with the use of a piezoelectric surgery device by preparing osteotomies and after mobilization of the buccal cortical by placing an autologous bone block harvested from the retromolar region as a spacer between the buccal and lingual cortical plates. Block-grafts were stabilized by osteosynthesis screws. Implant placement was carried out after a 3-month healing period. A total of 13 implants were placed in seven augmented sites of six patients. Results: Upon re-entry, all sites healed uneventfully. Mean ridge width gain was 2.86 mm, range: 2.0–5.0 mm. Conclusions: Clinical results of our study show that the modified ridge splitting technique is a safe and predictable method to restore width of the alveolar ridge prior to implant placement.


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