Assessment of soft-tissue vs hard-tissue changes after isolated functional genioplasty

Three-dimensional analysis of hard and soft tissue changes in skeletal class II patients with high mandibular plane angle undergoing surgery

“…However, no landmarks related to the chin showed statistically significant changes. This might be because of the hard-tissue vertical reduction at the chin after genioplasty, which was consistent with the results of Sylvain Chamberland, who reported that vertical soft-tissue change of chin points was less predictable after isolated functional genioplasty 5 .…”

“…However, a systematic review studying the hard and soft tissue response following isolated genioplasty reported that the ratio of soft and hard tissue changes after genioplasty ranged from 0.09 to 0.7 among the studies in the vertical plane 32 . Furthermore, Sylvain Chamberland revealed that chin soft-tissue changes could be predicted horizontally more precisely than vertically 5 . Therefore, more studies were needed to analyze the relationship between the soft and hard tissues of the chin in the vertical axis.…”

“…Many authors have studied the soft-to-hard tissue changes after mandibular advancement surgery. However, most previous studies used 2D lateral cephalograms, and skeletal changes following orthognathic surgery were evaluated only in an anteroposterior or vertical dimension, which were not assessed in a transverse dimension from a frontal aspect 4 , 5 . Only a few studies of 3D soft tissue changes used CBCT and facial scan imaging after orthognathic surgery in mandibular retrognathia 6 , 7 , but they seldom studied the relationships after two jaw surgeries.…”

Hard and Soft Tissue Relapse After Different Genioplasty Procedures: A Scoping Review

“…After removing duplicates, 287 articles were selected for review by two independent reviewers. Thirty-eight articles were found to be eligible for full-text assessment, out of which 31 articles were further rejected due to the use of additional surgical procedures apart from genioplasty or an insufficient follow-up period of less than six months, and seven articles were included in this review (Figure 1) [1,5,[8][9][10][11][12].…”

“…Five studies reported up-to-date data regarding hard and soft tissue relapse at the pogonion in the horizontal and vertical directions at six months or more of the post-treatment follow-up period [ 1 , 5 , 8 , 10 , 12 ]. The average horizontal surgical advancement at hard tissue pogonion was 7.04 mm with a relapse of 0.69 mm after six months post-treatment.…”