Dr. Mastrovich does exceptional work. I was referred to Dr. Mastrovich from my primary dentist because I had a dental implant abutment that broke and would not come out of the implant. Through his dental and mechanical skills he created an extractor and process from scratch that easily removed the broken part at no charge. Subsequent to that, he has gone the extra mile in an effort to ensure that the problem would not reoccur; he acquired all of the parts to create new dental molds and impressions so that a new abutment and crown could be created. Ultimately once the lab work is finished he will reinstall the new parts ensuring that the alignment of the abutment and crown are perfect so that my implant will last forever. Awesome JOB!