Periodontist Dr. Keith Chertok Makes Dental Implants More Possible with Bone Grafting in Berkeley, CA Share Article Dr. Keith Chertok, periodontist in Berkeley, CA, helps those suffering from bone loss become eligible for life-changing dental implants with bone grafting. With over 30 years of experience, Dr. Chertok provides long-lasting, stable dental implants and bone grafting in just one appointment. Periodontist Dr. Keith Chertok Provides Bone Grafting in Berkeley, CA Once they experience the power of dental implants, it changes their lives. It brings a smile to my face to be able to enhance the smiles of my patients. BERKELEY, Calif. (PRWEB)