Strength and Optical Properties

of the Incisal Third

 ・Learning Objectives 

   1) Understanding occulsal force differences between root support and implant support restoration.

   2) Understanding opal effect and none opal effect depends on framework design.

   3) Introducing new concept of full counter full arch zirconia restoration.


Today, we fabricate a variety of restorations utilizing different types of materials under various conditions to accommodate our patients’ expectations. 


Particularly, clinical reports show that veneering porcelain at anterior incisal third area has a greater risk of fracturing by occlusal forces if framework does not support the area. 


This lecture introduces the framework design that reduces the risk of fracture, while delivering great aesthetic results with proper selection of porcelain powders in the incisal third under various conditions.


 About the Instructor: Luke Hasegawa


Luke Hasegawa, CDT graduated from the dental technology school at Japan’s prestigious Niigata Dental University in 1995, and completed the post-graduate program at the Tokyo Dental and Medical University in 1997. 


 He received the “Special Article Award” by the International Dental Technology Association in 1997 for the article titled “Light Transmitted Porcelain and Composite Resin Material.” 


The additional honors include the “Three Gold Medal Awards” from the Florida Dental Association Smile Competition in 2008.  He has had the privilege of being mentored by world pioneer technicians Mr. Willi Geller and Mr. Naoki Aiba.  Luke was invited to join Mr. Geller's Oral Design group in 2009. 


He lectures and gives hands-on courses worldwide. 


In 1998, he immigrated to Canada from Japan as a dental technologist, and currently works at Dr. Dean McNeel’s in-house laboratory since 2010.  He resides with his wife and two daughters in Fayetteville, Arkansas, USA.