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Volumetric stability of autogenous bone graft with mandibular body bone: cone-beam computed tomography and three-dimensional reconstruction analysis.

Lee HG, Kim YD - J Korean Assoc Oral Maxillofac Surg (2015)

Bottom Line: All patients included in the study were scheduled for an onlay graft and implantation using a two-stage procedure.No major complications were observed for the donor sites.Volumetric stability of mandibular body autogenous block grafts is predictable.

View Article: PubMed Central - PubMed

Affiliation: Department of Oral and Maxillofacial Surgery, Pusan National University Dental Hospital, School of Dentistry, Pusan National University, Yangsan, Korea.

ABSTRACT

Objectives: The purpose of this study was to estimate the volumetric change of augmented autobone harvested from mandibular body cortical bone, using cone-beam computed tomography (CBCT) and three-dimensional reconstruction. In addition, the clinical success of dental implants placed 4 to 6 months after bone grafting was also evaluated.

Materials and methods: Ninety-five patients (48 men and 47 women) aged 19 to 72 years were included in this study. A total of 128 graft sites were evaluated. The graft sites were divided into three parts: anterior and both posterior regions of one jaw. All patients included in the study were scheduled for an onlay graft and implantation using a two-stage procedure. The dental implants were inserted 4 to 6 months after the bone graft. Volumetric stability was evaluated by serial CBCT images.

Results: No major complications were observed for the donor sites. A total of 128 block bones were used to augment severely resorbed alveolar bone. Only 1 of the 128 bone grafts was resorbed by more than half, and that was due to infection. In total, the average amount of residual grafted bone after resorption at the recipient sites was 74.6%±8.4%.

Conclusion: Volumetric stability of mandibular body autogenous block grafts is predictable. The procedure is satisfactory for patients who want dental implants regardless of atrophic alveolar bone.

No MeSH data available.


Related in: MedlinePlus

A. Cross-section of grafted bone 1 day after grafting surgery. B. Cross-section of grafted bone 4.2 months after grafting surgery. Hyeong-Geun Lee et al: Volumetric
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Figure 4: A. Cross-section of grafted bone 1 day after grafting surgery. B. Cross-section of grafted bone 4.2 months after grafting surgery. Hyeong-Geun Lee et al: Volumetric

Mentions: A previous volumetric study showed that a significant amount of resorption of bone grafts occurred during the first 6 months following surgery. Furthermore, these authors concluded that the initial loss of bone grafts subsides after 6 months and does not significantly continue after 12 months16. Therefore, in the current study, the authors placed implants 4.3±0.8 months after bone graft surgery. The present study demonstrated the volumetric stability of block bone grafts in 95 patients. The CBCT evaluation 4.2 months after block bone grafting showed very high volumetric stability.(Fig. 4)


Volumetric stability of autogenous bone graft with mandibular body bone: cone-beam computed tomography and three-dimensional reconstruction analysis.

Lee HG, Kim YD - J Korean Assoc Oral Maxillofac Surg (2015)

A. Cross-section of grafted bone 1 day after grafting surgery. B. Cross-section of grafted bone 4.2 months after grafting surgery. Hyeong-Geun Lee et al: Volumetric
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4641213&req=5

Figure 4: A. Cross-section of grafted bone 1 day after grafting surgery. B. Cross-section of grafted bone 4.2 months after grafting surgery. Hyeong-Geun Lee et al: Volumetric
Mentions: A previous volumetric study showed that a significant amount of resorption of bone grafts occurred during the first 6 months following surgery. Furthermore, these authors concluded that the initial loss of bone grafts subsides after 6 months and does not significantly continue after 12 months16. Therefore, in the current study, the authors placed implants 4.3±0.8 months after bone graft surgery. The present study demonstrated the volumetric stability of block bone grafts in 95 patients. The CBCT evaluation 4.2 months after block bone grafting showed very high volumetric stability.(Fig. 4)

Bottom Line: All patients included in the study were scheduled for an onlay graft and implantation using a two-stage procedure.No major complications were observed for the donor sites.Volumetric stability of mandibular body autogenous block grafts is predictable.

View Article: PubMed Central - PubMed

Affiliation: Department of Oral and Maxillofacial Surgery, Pusan National University Dental Hospital, School of Dentistry, Pusan National University, Yangsan, Korea.

ABSTRACT

Objectives: The purpose of this study was to estimate the volumetric change of augmented autobone harvested from mandibular body cortical bone, using cone-beam computed tomography (CBCT) and three-dimensional reconstruction. In addition, the clinical success of dental implants placed 4 to 6 months after bone grafting was also evaluated.

Materials and methods: Ninety-five patients (48 men and 47 women) aged 19 to 72 years were included in this study. A total of 128 graft sites were evaluated. The graft sites were divided into three parts: anterior and both posterior regions of one jaw. All patients included in the study were scheduled for an onlay graft and implantation using a two-stage procedure. The dental implants were inserted 4 to 6 months after the bone graft. Volumetric stability was evaluated by serial CBCT images.

Results: No major complications were observed for the donor sites. A total of 128 block bones were used to augment severely resorbed alveolar bone. Only 1 of the 128 bone grafts was resorbed by more than half, and that was due to infection. In total, the average amount of residual grafted bone after resorption at the recipient sites was 74.6%±8.4%.

Conclusion: Volumetric stability of mandibular body autogenous block grafts is predictable. The procedure is satisfactory for patients who want dental implants regardless of atrophic alveolar bone.

No MeSH data available.


Related in: MedlinePlus