Dentsply International Inc.

Dentsply Sirona Inc.

Qizhou Dai

Xiaoming Jin

Louis Bertrand

Paul D Hammesfahr

Bernard Koltisko

Michael T O'Connor

Nikki Sparacino

Bill Martin

Nils Classen

Mike O'CONNOR

Jin Xiaoming

Disclosed herein are low viscosity and low stress dental compositions comprising at least one low stress polymerizable resin and at least one filler. The dental compositions described herein have high depth of cure and self-leveling characteristics and are capable of bulk application.

Low stress flowable dental composition

Disclosed herein is an apparatus and a method to use such an apparatus for visualizing the contraction stress from curable materials. Particularly, a simple test device has been designed and fabricated and a method of using such a device, which allows a user to easily distinguish the curable materials that can generate contraction stress in different magnitudes. More specifically, the present disclosure provides a simple and effective way to make the complicated contraction stress due to polymerization (curing or setting) visualizable and audible.

Method and apparatus for visualizing contraction stress from curable materials

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Dover, DE, United States of America

Qizhou Dai