選射炎 的英文怎麼說
中文拼音 [xuǎnshèyán]
選射炎
英文
transmission belts-
Ion objective : to investigate effect of nd : yag laser irradiating root canals on periapical tissue. methods : three minipigs were used in this study, deciduous premolars were opened, pulps were extracted, root canals were enlarged, then irradiated with nd : yag laser 30s and filled conventionally. the changes of periapical tissue were observed after 1, 3, 7 and 15 days. results : after one day, periapical tissue showed enlargement and engorgement of blood vessel and a few of leukocyte, the changes were more serious than in control. after 3 and 7 days, there were minor reactions in periapical tissue and same as the control group. after 15 days, periapical membrance in most specimens was normal. slight inflammatory reaction was found in the test group as same as in control group. conclusion : there was little damage to periapical tissue with the laser irradiation
目的:觀察激光在根管內照射后對根尖周組織的作用.方法:選3隻小型豬，全麻下將乳前磨牙開髓、抽髓，根管擴大后，激光照射30秒，做常規根管充填.對照組為常規根管充填. 1天、 3天、 7天和15天後觀察根尖周組織的變化.結果:激光照射后1天，根周膜血管充血、輕度炎癥，對照組只有根尖周膜充血.激光組組織反應比對照組稍重.激光照射后3天和7天，少數病例根周組織有輕度的刺激與對照組的病理表現相近.激光照射后15天部分標本根周膜正常，部分標本有輕度炎癥反應，與對照組結果基本相似.結論:本激光照射條件對根尖周組織沒有明顯損傷作用，可供臨床應用時參考For those who are antigen and antibody negative can avail themselves with vaccination. the blood test for hepatitis a is optional while it is a must for blood test for hepatitis b vaccination
以上兩種疾病可透過疫苗注射預防，甲型肝炎可選擇直接注射，但注射乙型肝炎疫苗前，必須經過病毒抗原及抗體測試。
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