Mikołajczak Teresa, Wilk Grazyna, Gawrych Elzbieta
Katedra i Zakład Radiologii Ogólnej i Stomatologicznej Pomorskiej Akademii Medycznej w Szczecinie, Szczecin.
Ann Acad Med Stetin. 2007;53(3):66-73.
The objective of the work was to assess the suitability of digital radiography with the option of tomosynthesis for the purpose of mineralization of bone, grafted to the alveolar cleft fissure. Moreover the assessment of the influence of the patients age on the operation date on the transplanted bone mineralization degree was carried out. Furthermore, an attempt to compare the density of the transplanted bone to the density of the bone on the opposite side was taken on the basis of pantomographs. Additionally, the level of oral cavity hygiene and its influence on mineralization of the bone transplant were discussed.
27 patients with complete cleft lip and palate, who underwent operation of autogenic bone graft to alveolar process were investigated. During clinical examination, information about the patients age on their operation date were collected, and DMF and OHI indicators were defined. Control digital intraoral X-rays of all patients aimed at the cleft area were taken. Additionally, conventional pantomographs of 18 patients for orthodontic indications were taken. Relative values of the grafted and healthy bones were defined on the basis of the intraoral and pantomographic images with the use of software Digora (Soredex).
The relative density of bone grafts, whose range was established by the means of the tomosynthesis option, and which was obtained through the analysis, was 87.8 and in the healthy bone (adjacent to transplant) - 149.2. The values of relative thickness of the transplanted and healthy bones were established on the basis ofpantomographs and proved to be lower than those obtained with the intraoral images. A statistical analysis of the intraoral images showed a substantial difference between the established values of the healthy and transplanted bones. In addition, the dependence between the degree of mineralization and the patients age on the day of the operation was observed. It was proven that the younger the patient was on that day, the higher the transplanted bone thickness was. Based on average values of DMF and OHI indicators, a high intensivity of caries was found in 78.3%, a good hygienic condition of the oral cavity in 78.3% and a satisfactory value in 21.7% of the cases.
本研究的目的是评估数字放射摄影结合断层合成技术用于评估移植到牙槽裂的骨矿化情况的适用性。此外，还评估了患者年龄对手术日期时移植骨矿化程度的影响。此外，还试图根据全景片比较移植骨与对侧骨的密度。另外，还讨论了口腔卫生水平及其对骨移植矿化的影响。
对27例唇腭裂患者进行了自体骨移植到牙槽突的手术，并对其进行了研究。在临床检查过程中，收集了患者手术日期时的年龄信息，并确定了DMF和OHI指标。对所有患者针对腭裂区域进行了对照数字口腔内X线检查。此外，对18例有正畸指征的患者拍摄了传统全景片。使用Digora软件（Soredex），根据口腔内和全景图像确定移植骨和健康骨的相对值。
通过断层合成技术确定范围并经分析得到的移植骨相对密度为87.8，而健康骨（与移植骨相邻）的相对密度为149.2。根据全景片确定的移植骨和健康骨的相对厚度值低于口腔内图像获得的值。对口腔内图像的统计分析显示，健康骨和移植骨的确定值之间存在显著差异。此外，观察到矿化程度与患者手术当天年龄之间的相关性。事实证明，患者手术当天年龄越小，移植骨厚度越高。根据DMF和OHI指标的平均值，发现78.3%的患者龋齿发生率高，78.3%的患者口腔卫生状况良好，21.7%的患者情况令人满意。
