Interlabial gap and freeway space at rest position: a cephalometric study

Abstract Objectives The aim of this prospective study was to assess the amount interlabial gap (ILG) and freeway space (FWS) at rest position (RP) according gender, age, skeletal pattern, evaluate cephalometric measurements maximum intercuspal (MIP) RP define changes from MIP related ILG FWS. Methods Lateral cephalograms photographs selected subjects (47 females, 57 males) were obtained RP. Cephalometric their differences measured compared. Results ( P > 0.05) FWS < 0.01) greater in males than females. adolescents adults. not significantly with vertical pattern (FHR, facial height ratio). greatest Class II cases but without significance. III I 0.05). At MIP, increased as overjet upper lip aesthetic line increased. RP, incisor exposure lips 0.001), decreased overbite 0.001). From length showed decrease 0.001) large group. Additionally, Bjork sum (the saddle, articular, gonial angles), mandibular plane angle, anterior height, ANB increase, while OB competent group largest frequency distribution small groups, smile no relationship level Conclusions Taking would be helpful more accurately, provide a accurate diagnosis treatment plan.