Periodontitis is one of the most common oral diseases in the world. Periodontitis when diagnosed early have the better prognosis for the individual to save the tooth. Diagnostic markers are useful to indicate the presence of a disease process before excessive clinical damage occurs. One such main source of biomarker is gingival crevicular fluid. This review article deals with Gingival crevicular fluid(GCF) as a source of biomarkers for periodontal disease progression and severity which helps in diagnosis and prognosis in the field of Periodontology and also details about available various chairside diagnostic kits for the biomarkers. KEYWORDS: Biomarkers, Gingival crevicular Fluid, Periodontal Disease

Narrow dentoalveolar ridges pose a major challenge for the successful placement of endosseous implants. This case report focuses on a Piezoelectric driven mandibular Ridge Split technique without vertical osteotomy for an immediate implant placement in a narrow alveolar ridge measuring 3.0mm. Following anaesthesia, a mucoperiosteal flap was elevated after giving a mid-crestal incision distal to 35 along the entire edentulous ridge. Then, with the help of a micro-saw and horizontal spreaders, an osteotomy site of required diameter was achieved. Finally twist drills were used and implants were placed in the expanded site. Clinically, healing was uneventful with no step defect in the expanded buccal bone and the final occlusion obtained was satisfactory. The Piezo-electric driven Ridge Split technique promises to be a minimally invasive option for horizontal augmentation of narrow alveolar ridges- predictability within a short interval of time and with minimal risk of fracture.