Class IV tooth cavity preparation is indicated for restoring proximal areas that also include the incisal surface of an anterior tooth.
The Class IV composite restoration has provided the profession with a conservative treatment to restore fractured, defective, or cariously involved anterior teeth when, previously, a porcelain crown may have been the treatment of choice.
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The preoperative assessment of the occlusion is even more important for Class
IV restorations because it may influence the tooth preparation extension (placing margins in non-contact areas)
Dr. Dennis Hartlieb shows you in this video the step by step process to consistently get the result you want.