Shika Sagas is a Japanese online directory that helps people find dental clinics and dentists across Japan. Operated by Isis Co., Ltd., based in Osaka, the service supports searches by both treatment and location, with coverage organized across regions and prefectures nationwide. Its treatment categories include general and cosmetic dentistry, orthodontics for adults and children, periodontal care, root canal treatment, implants, dentures, and tooth whitening.

Visitors can also explore options such as Invisalign, mouthguard-style orthodontics, ceramic treatments, direct bonding, microscope-assisted care, regenerative procedures, and approaches described as pain-free treatment. The site presents its service as a video-based way to learn more when choosing a dentist. Shika Sagas is currently undergoing a full redesign, and its notice warns that some page links may not work during the transition.

New clinic registrations and reciprocal link applications are temporarily unavailable until the renewal is complete. The directory also provides contact information and links to its disclaimer, privacy policy, and operating company details