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Incomplete bone formation after sinus augmentation: A case report on radiological findings by computerized tomography at follow-up.

Lee KS, Kwon YH, Herr Y, Shin SI, Lee JY, Chung JH - J Periodontal Implant Sci (2010)

Bottom Line: The result of this case suggests that patients who received maxillary sinus augmentation may experience incomplete bone formation.It is possible that 1) osteoconductive graft material with poor osteogenic potential, 2) overpacking of graft material that restricts the blood supply, and 3) bone microbial contamination may cause the appearance of incomplete bone formation after sinus augmentation.Further studies are needed to elucidate the mechanism of this unexpected result and care must be taken to prevent it.

View Article: PubMed Central - PubMed

Affiliation: Department of Periodontology, Kyung Hee University School of Dentistry, Seoul, Korea.

ABSTRACT

Purpose: The aim of this case report is to present a case of incomplete bone formation after sinus augmentation.

Methods: A patient having alveolar bone resorption of the maxillary posterior edentulous region and advanced pneumatization of the maxillary sinus was treated with sinus elevation using deproteinized bovine bone in the Department of Periodontology, Kyung Hee University School of Dentistry and re-evaluated with computed tomography (CT) follow-up.

Results: Even though there were no significant findings or abnormal radiolucency on the panoramic radiograph, incomplete bone formation in the central portion of the augmented sinus was found fortuitously in the CT scan. The CT scan revealed peri-implant radiolucency in the apical portion of the implant placed in the augmented maxillary sinus. Nevertheless, the dental implants placed in the grafted sinus still functioned well at over 15 months follow-up.

Conclusions: The result of this case suggests that patients who received maxillary sinus augmentation may experience incomplete bone formation. It is possible that 1) osteoconductive graft material with poor osteogenic potential, 2) overpacking of graft material that restricts the blood supply, and 3) bone microbial contamination may cause the appearance of incomplete bone formation after sinus augmentation. Further studies are needed to elucidate the mechanism of this unexpected result and care must be taken to prevent it.

No MeSH data available.


Related in: MedlinePlus

Maxillary sinus augmentation was performed.
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Figure 4: Maxillary sinus augmentation was performed.

Mentions: A 53-year-old male patient who was in good systemic condition visited the Department of Periodontology, Kyung Hee University School of Dentistry with the chief complaints of pain and gingival bleeding in the upper right 1st molar (#16) area. The upper right 2nd molar (#17) area was in an edentulous state (Fig. 1). Even though he was treated with non-surgical/surgical periodontal therapy, extraction of #16 was inevitable. The residual bone height was between 2 to 4 mm (Fig. 2). Augmentation of the maxillary sinus was scheduled to be conducted with a diagnostic stent 3 months after the extraction of #16, followed by placement of two dental implants 6 months after the augmentation of the maxillary sinus (Fig. 3). The maxillary sinus was clinically healthy. The sinus membrane was elevated from a lateral approach and the sinus was grafted with deproteinized bovine bone (DBB; Bio-Oss, Geistlich Pharma AG, Wolhusen, Switzerland) (Fig. 4). Prophylactic antibiotics (amoxicillin 500 mg, Chong Kun Dang Pharm., Seoul, Korea) were prescribed three times a day for 14 days and 0.12% chlorhexidine solution (Hexamedine, Bukwang Pharm., Seoul, Korea) was also prescribed twice a day for the first 2 weeks to prevent infection of the surgical wound. Healing was uneventful and there was no infection or other post-surgical complications during the healing period.


Incomplete bone formation after sinus augmentation: A case report on radiological findings by computerized tomography at follow-up.

Lee KS, Kwon YH, Herr Y, Shin SI, Lee JY, Chung JH - J Periodontal Implant Sci (2010)

Maxillary sinus augmentation was performed.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3021169&req=5

Figure 4: Maxillary sinus augmentation was performed.
Mentions: A 53-year-old male patient who was in good systemic condition visited the Department of Periodontology, Kyung Hee University School of Dentistry with the chief complaints of pain and gingival bleeding in the upper right 1st molar (#16) area. The upper right 2nd molar (#17) area was in an edentulous state (Fig. 1). Even though he was treated with non-surgical/surgical periodontal therapy, extraction of #16 was inevitable. The residual bone height was between 2 to 4 mm (Fig. 2). Augmentation of the maxillary sinus was scheduled to be conducted with a diagnostic stent 3 months after the extraction of #16, followed by placement of two dental implants 6 months after the augmentation of the maxillary sinus (Fig. 3). The maxillary sinus was clinically healthy. The sinus membrane was elevated from a lateral approach and the sinus was grafted with deproteinized bovine bone (DBB; Bio-Oss, Geistlich Pharma AG, Wolhusen, Switzerland) (Fig. 4). Prophylactic antibiotics (amoxicillin 500 mg, Chong Kun Dang Pharm., Seoul, Korea) were prescribed three times a day for 14 days and 0.12% chlorhexidine solution (Hexamedine, Bukwang Pharm., Seoul, Korea) was also prescribed twice a day for the first 2 weeks to prevent infection of the surgical wound. Healing was uneventful and there was no infection or other post-surgical complications during the healing period.

Bottom Line: The result of this case suggests that patients who received maxillary sinus augmentation may experience incomplete bone formation.It is possible that 1) osteoconductive graft material with poor osteogenic potential, 2) overpacking of graft material that restricts the blood supply, and 3) bone microbial contamination may cause the appearance of incomplete bone formation after sinus augmentation.Further studies are needed to elucidate the mechanism of this unexpected result and care must be taken to prevent it.

View Article: PubMed Central - PubMed

Affiliation: Department of Periodontology, Kyung Hee University School of Dentistry, Seoul, Korea.

ABSTRACT

Purpose: The aim of this case report is to present a case of incomplete bone formation after sinus augmentation.

Methods: A patient having alveolar bone resorption of the maxillary posterior edentulous region and advanced pneumatization of the maxillary sinus was treated with sinus elevation using deproteinized bovine bone in the Department of Periodontology, Kyung Hee University School of Dentistry and re-evaluated with computed tomography (CT) follow-up.

Results: Even though there were no significant findings or abnormal radiolucency on the panoramic radiograph, incomplete bone formation in the central portion of the augmented sinus was found fortuitously in the CT scan. The CT scan revealed peri-implant radiolucency in the apical portion of the implant placed in the augmented maxillary sinus. Nevertheless, the dental implants placed in the grafted sinus still functioned well at over 15 months follow-up.

Conclusions: The result of this case suggests that patients who received maxillary sinus augmentation may experience incomplete bone formation. It is possible that 1) osteoconductive graft material with poor osteogenic potential, 2) overpacking of graft material that restricts the blood supply, and 3) bone microbial contamination may cause the appearance of incomplete bone formation after sinus augmentation. Further studies are needed to elucidate the mechanism of this unexpected result and care must be taken to prevent it.

No MeSH data available.


Related in: MedlinePlus