妊娠和哺乳期对大鼠切牙牙本质和牙釉质显微硬度的影响。

Effects of pregnancy and lactation on the microhardness of rat incisor dentine and enamel.

作者信息

Ozbek Murat, Kanli Aydan, Dural Sema, Sahin Ibrahim, Gonen Emel, Tulunoglu Ibrahim

机构信息

Department of Oral Diagnosis and Radiology, School of Dentistry, Hacettepe University, Sihhiye, 06100 Ankara, Turkey.

出版信息

Arch Oral Biol. 2004 Aug;49(8):607-12. doi: 10.1016/j.archoralbio.2004.02.003.

DOI:10.1016/j.archoralbio.2004.02.003

PMID:15196978

Abstract

Pregnancy and lactation affect the rate of maternal dentine apposition and mineralization in the rat. In this study we have measured the effects of pregnancy and lactation on the degree of mineralization of dentine and enamel by using the microhardness method in rat incisors. At incisal sections, pregnant and lactation group enamel values were increased compared to that of a control group; the pregnancy and post-lactation period dentine values decreased slightly compared to the control group. At neck sections, pregnant and lactation group enamel values were decreased compared to that of the control group; the pregnancy and post-lactation period dentine values were also decreased slightly compared to the control group. At the post-lactation period neck section dentine mineralization was decreased compared with the incisal section. As a result, enamel and dentine layers of rat incisors are affected to varying degrees by these changes in mineralization levels during the maternal period.

摘要

怀孕和哺乳期会影响大鼠母体牙本质的沉积速率和矿化。在本研究中，我们通过使用大鼠切牙的显微硬度法来测量怀孕和哺乳期对牙本质和牙釉质矿化程度的影响。在切端切片处，怀孕和哺乳期组的牙釉质值相较于对照组有所增加；怀孕期和哺乳期后牙本质值相较于对照组略有下降。在颈部切片处，怀孕和哺乳期组的牙釉质值相较于对照组有所下降；怀孕期和哺乳期后牙本质值相较于对照组也略有下降。在哺乳期后颈部切片处，牙本质矿化相较于切端切片有所降低。因此，在母体期，矿化水平的这些变化会不同程度地影响大鼠切牙的牙釉质和牙本质层。