Paulson R, Schroeder K, Zacherl W, Sciulli P
Arch Oral Biol. 1984;29(2):117-25. doi: 10.1016/0003-9969(84)90114-6.
A variety of cusp-tip pits were observed with the scanning electron microscope (SEM) on canines and molars of both deciduous and permanent dentitions. Larger pits or craters usually were single and funnel-shaped with a narrow 100 micron base widening to 300-400 micron peripheral opening; smaller pits were in groups. As defects occur precisely in the tips of cusps, developing cusps fetal dentitions were examined for a consistent structural pattern which could explain cusp-tip pit development.
利用扫描电子显微镜（SEM）在乳牙和恒牙的犬齿及臼齿上观察到了各种牙尖窝。较大的窝或坑通常是单个的且呈漏斗状，底部狭窄，宽100微米，周边开口宽达300 - 400微米；较小的窝则成组出现。由于缺陷恰好出现在牙尖处，因此对发育中的牙尖——胎儿牙列进行了检查，以寻找能够解释牙尖窝形成的一致结构模式。
