Normal development of human fetal teeth during prenatal period play an important role in analyzing abnormal teeth formation and examining pathologic approach to abnormal teeth formation. The purposes of this study were to describe the normal development of dental hard tissues in fetal teeth compared to abnormal teeth formation through review and literature. We will apply these study to examine the pathologic alterations of human teeth in the future.

I. INTRODUCTION
 II. DISCUSSION
 REFERENCE

• Hyock Soo Moon(Department of Preventive Dentistry, Dental College, Seoul National University)
• Chong Heon Lee(Department of Oral Pathology, Dental College, Dankook University)