Please activate JavaScript!
Please install Adobe Flash Player, click here for download
ePaper created 2015-03-07, 18:13:20 | version 1.33.01
I technique _ CBCT diagnostic _The use of three-dimensional (3-D) CBCT im- aging has evolved quickly as the worldwide method of choice to aid in the diagnosis and treatment plan- ning for dental implants, bone grafting, and a variety of other treatment modalities. As each patient pres- ents with their own unique anatomical reality, it is thepoweroftheinteractivetreatmentplanningsoft- warethathelpstoconverttheCBCTdatasetontothe computer screen for interpretation and analysis. However,havingaCBCTscanbyitselfmaynotprovide the clinician with the most definitive appreciation of the patient’s anatomy as it relates to the proposed treatment.Often,toimprovediagnosticaccuracy,itis helpful to establish a relationship between the un- derlying bone and desired restorative outcome with ascannographic,orradiopaquetemplatewornbythe patientduringthescanacquisition.Afterduplication of a diagnostic wax-up, or duplication of a patient’s denture with a radiopaque material (BariOpaque, Salvin Dental Specialties), the template prosthesis seated intraorally, and the scan acquired. Theradiopaquetemplateasseeninthecross-sec- tional slice, reveals several important aspects of the patient’s anatomy (Fig. 1): _the template seen in relationship to the underlying edentate alveolar maxillary ridge (red arrow) _the flange of the denture template defines the su- perior extent of the labial vestibule (yellow arrow) _the grey area surrounding the template and bone representing the soft tissue components Fig. 1_Duplication of a patient’s denture with a radiopaque material reveals the relationship between the desired tooth position and the underlying bone. Fig. 2_A cross-sectional slice of a maxillary anterior incisor tooth, showing: the outline of the lip (yellow arrows), the root apex (red arrow), and the exposed tooth root (pink arrow). Fig. 3_The lip rests against the maxillary canine alveolar-tooth-root complex (yellow arrow). If an implant osteotomy follows the tooth socket, it can potentially perforate the thin facial cortical plate (pink arrows). Improved CBCT diagnostic acuity with the ‘Lip-Lift’technique Author_ Dr Scott D. Ganz, USA 06 I cone beam1_2015 Fig. 1 Fig. 2 Fig. 3