Calculation of bone graft volume using 3D reconstruction system

Calvo-Guirado, José Luís; Maté‐Sánchez, José‐Eduardo; Delgado-Ruíz, Rafael Arcesio; Ramírez-Fernández, Maria-Piedad

doi:10.4317/medoral.16.e260

Cited by 5 publications

(2 citation statements)

References 16 publications

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“…It is a well-known fact calcium levels are a good indicator of bone quality, so elemental analysis is a good way of assessing the quality of neoformed bone ( 6 - 7 ). Although there may be good BIC levels, if the neoformed bone is of low quality with low calcium content, implant retention will be less than expected and long-term stability may be compromised ( 8 ).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of periimplant bone neoformation using different scanning electron microscope methods for measuring BIC. A dog study.

Calvo-Guirado¹,

Aguilar‐Salvatierra²,

Guardia³

et al. 2012

J Clin Exp Dent

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Objetives: The aim of this study was to determine which of three methods for measuring BIC (bone-to-implant contact), using vestibular and lingual scanning electron microscopy (SEM) for different implant systems at 15, 30 and 90 days post-surgery was the most precise. An elemental analysis with SEM was used to evaluate neoformed bone composition for three implant systems at the same study times. Material and Methods: 36 implants were placed in eighteen Beagle dogs mandible about one year old and weighing approximately 12-13 kg in order to evaluate bone apposition to three different implant surfaces. It was used the third and fourth premolar and ﬁrst molar distal sockets in both quadrants of the mandible (3P3, 4P4 and 1M1). Teeth were hemi-sected and the distal roots were removed. The specimens were prepared for histological examination and each section surface was stained using Masson’s trichrome and hematoxylin and eosin stains. BIC evaluations were performed by the three methods, BIC I (the quantity of mineralized bone in direct contact with the implant’s titanium surface across the entire threaded area); BIC II (along a line that passes from apex to apex of the implant threads); BIC III (both in areas around and above the threads and in between threads). Results: Both BIC and bone content were analyzed for all implants placed in P3, P4 y M1 alveoli on both, the buccal and palatine sides (elemental analysis quantified Ca, P, O and C). It was seen it was only at the ninety-day mark that high percentages of calcium were present. Conclusions: This study suggest that BIC III evaluation is the most certain method for establishing the quantity of bone formed as the BIC area. Key words:Bone-to-impant contact, dogs, extraction socket, implants.

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Section: Introductionmentioning

confidence: 99%

Evaluation of periimplant bone neoformation using different scanning electron microscope methods for measuring BIC. A dog study.

Calvo-Guirado¹,

Aguilar‐Salvatierra²,

Guardia³

et al. 2012

J Clin Exp Dent

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“…This procedure made it easy to set the safety margins of the disease and to design various types of osteotomies. Many studies have emphasized the advantages of using CAS to save time, ensure accurate results, and obtain aesthetic results, but no study has investigated the benefits of preserving anatomical structures using various types of osteotomies [2,[4][5][6][7]16] Bone volume calculation in three-dimensional images is a commonly used method for the evaluation of surgical results [17]. In this study, the volume and surface of the remaining mandibular bone after mandibular resection were analyzed in conventional resection simulation and tailor-made resection simulation, and the results were statistically significant ( Table 3).…”

Section: Discussionmentioning

confidence: 99%

Computer-Assisted Preoperative Simulations and 3D Printed Surgical Guides Enable Safe and Less-Invasive Mandibular Segmental Resection: Tailor-Made Mandibular Resection

et al. 2020

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This study aimed to present and evaluate alternative lesion-specific mandibulectomy methods for preserving the mandibular anatomical structures as compared with the conventional virtual surgical plan. Fifteen patients who received segmental mandibulectomy were included in this study, and the following parameters were evaluated: (1) the disease-free bone margin, (2) the volume and surface between the tailor-made resection simulation and conventional resection simulation, and (3) the preserved mandibular anatomical structures. In all 15 patients, disease-free bone margins were confirmed by histopathology. Volumes of conventional resection simulation and tail-made resection simulation were 49,468.66 ± 14,007.96 mm 3 and 52,610.01 ± 13,755.33 mm 3 and the surfaces were 20,927.38 ± 4471.70 mm 2 and 22,356.49 ± 4185.73 mm 2 , respectively; these were statistically significant (both, p < 0.001). Mandibular dentition was partially preserved in six patients. Twelve of the 15 patients had changes in defect classification with preservation of the mandibular inferior border. In conclusion, alternative lesion-specific mandibulectomy was a less invasive method for effectively removing mandibular lesions while preserving the important anatomical structures of the mandible.

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