Dental Probe Cpitn 0.5 Rond Tip 3.5-5.5-8.5-11.5 Color Coded Marking Instrument Manufactured for Optimal results and Precision. CPITN (Community Periodontal Index for Treatment Needs) 3.5-5.5-8.5-11.5mm color-coded Marking with 0.5mm round tip silver/black with ac..