A.0.41~0.60B.0.61~0.80C.0.70~0.90D.0.81~1.0
A.上皮過度,已角化B.基底層液化變性,固有層淋巴細(xì)胞呈帶狀浸潤C.顆粒層明顯,棘層肥厚D.上皮釘突呈不規(guī)則延長,有時呈鋸齒狀
A.解剖性根尖孔B.生理性根尖孔C.根尖分歧D.側(cè)支根管