8.有關牙周韌帶注射（PDL injection）之敘述，下列何者正確？
(A)麻醉劑由牙周韌帶直接滲透至牙根尖
(B)注射針之斜面方向影響其成功率
(C)只需一個注射點即可獲得完全的麻醉效果
(D)麻醉劑由牙周韌帶經齒槽骨滲透至牙根尖神經叢

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統計： A(57), B(65), C(2), D(243), E(0) #1032503

詳解 (共 3 筆)

#2747223
PDL--->marrow spaces in intraseptal bone --->根尖神經叢
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#2519185

【Hint】 The solution is not forced apically through the periodontal tissues, …….Therefore the PDL injection appears to produce anesthesia in much the same way as IO and intraseptal injections—by diffusion of anesthetic solution apically through marrow spaces in the intraseptal bone 


【出處】Handbook of local anesthesia, Chapter 15 Supplemental injection technique

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#6230626
1. A. 雖然麻醉劑會滲透至牙根尖，...
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