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구개 및 치아 형태와 구개부 저작점막의 두께와의 연관성
석화숙,이만섭,권영혁,박준봉,Seok, Hwa-Suk,Lee, Man-Sub,Kwon, Young-Hyunk,Park, Joon-Bong 대한치주과학회 2003 Journal of Periodontal & Implant Science Vol.33 No.3
The aim of present investigation was to clinically measure the thickness of palatal masticatory mucosa in the hard palate as potential donor site for mucogingival surgery, to determine the relation to shape of palatal vault, form of tooth, gender, and to serve the clinical criteria t o choose the proper surgical technique. 84(mean age:25yrs) systemically and periodontally healthy volunteers participated in this study and 18 standard measurement points were defined in the hard palate, located on 3 lies which ran at different distances parallel to the gingival margin. 6 positions were designated on each of these 3 lines between the level of canine and 2nd molar and a bone sounding technique using a periodontal probe with minimal local anesthesia was utilized to assess the thickness of palatal masticatory mucosa. Student t-test was used to determine the difference in mucosal thickness between 2 groups gender, shape of palatal vault (high palatal vault vs. low palatal vault), tooth form (short-wide vs. long narrow) The result of this study were as follows: 1. Soft tissue thickness progressively increased in sites further away from the gingival margin (p<0.01). 2. Depending on position, in line a and line c the masticatory mucosal thickness increased from Ca to M2(p<0.01), but in line b the thickness increased from Ca to P2, and decreased to M1 and increased again to M2. 3. Gender did not influence the thickness of masticatory mucosa. 4. Palatal vault shape was associated with the thickness of masticatory mucosa. Thickness of low palatal vault group was thicker than high palatal group between P2 and M2 position. 5. Form of tooth did not influence the thickness of masticatory mucosa. In conclusion, palatal vault shape was associated with the thickness of masticatory mucosa. So, mucogingival surgery can be considered as a treatment modality in high palatal vault group. But, Gender and tooth form did not influence the thickness of masticatory mucosa.
석화숙,허익,정종혁,신승일,한지영,신승윤 한국조직공학과 재생의학회 2014 조직공학과 재생의학 Vol.11 No.6
Many studies tried to mix two different kinds of graft materials to combine the uses of their differentproperties. The aim of this study was to compare the sandwich and simple mixed graft technique using differentkinds of graft materials such as deproteinized bovine bone mineral (DBBM) and mineralized solvent-dehydratedbone (MSDB) for mixed and layered grafts in 1-wall exophytic rabbit calvarial model. Twenty New Zealand whiterabbits were used. After creating surgical defects at calvarium, titanium reinforced expanded polytetrafluoroethylene(TR e-PTFE) membranes were folded (8 × 5 × 4 mm) and adapted on calvarial defects. Membranes were filledwith different materials and methods (no graft, DBBM, MSDB, mixture, layered graft). Four sites were assigned toeach group at 8 and 16 weeks respectively. Non-decalcified specimens were prepared and processed for histologicobservations. The areas of newly formed bone and residual bone graft material under the membrane were measured. Newly formed bone and graft materials fully filled the membrane space in all grafted groups. The amount of hardtissue was higher in all grafted groups than in control. Although DBBM did not show resorption, MSDB particlesshowed active absorption. New bone and graft material were uniformly distributed in DBBM and MSDB mixture. However, the composition of graft material was different in layered graft groups. Layered graft of DBBM andMSDB mimicked unique bone structure and provided an appropriate situation for facilitating new bone formation.