Abstract: Objective To analyze retrospectively the clinical effects of pedicled flap combined with connective tissue
transplantation and flap surgery in the treatment of soft tissue defects in the surgical area after resection of gingival tumor on
the lib and buccal side. MethodsThe clinical data of 80 patients with lib and buccal gingival tumor who were hospitalized
in stomatology department of Tianjin Baodi Hospital from January 2017 to February 2019 were analyzed retrospectively.
According to the different operation methods, 38 patients who underwent flap operation to correct the soft tissue defects in
the operation area were included in the control group, 42 patients who underwent pedicled flap combined with connective
tissue transplantation to correct the soft tissue defects in the operation area were included in the observation group. The
sulcus bleeding index (SBI), gingival index (GI) and periodontal probing depth (PD) were recorded before operation, 3 months
and 6 months after the operation in the 2 groups. The keratinized gingival width (KGW) and root coverage (RC) were
compared immediately, 3 months and 6 months after the operation between the 2 groups. Results The levels of SBI, GI and
PD were significantly decreased 3-month and 6-month after operation in the 2 groups, and those were significantly lower in observation group than those in the control group (P＜0.05). KGW was significantly higher immediately after operation in the
control group than that in the observation group (P＜0.05), but it was significantly lower at 3 months and 6 months after
operation in the control group than that in the observation group (P＜0.05). The RC values were significantly higher
immediately after operation and 3 months and 6 months after operation in the observation group than those in the control
group (P＜0.05). The excellent and good rates of aesthetic effect and patient satisfaction 6 months after operation were
97.6% and 97.6% in the observation group, which were significantly higher than 84.2% and 78.9% in the control group (P＜
0.05). ConclusionFor patients with gingival tumors that only affect the lip and buccal side, the effect of pedicled flap
combined with connective tissue transplantation to correct soft tissue defects in the operation area is satisfactory. Compared
with the use of flap surgery to correct soft tissue defects in the operation area, the aesthetic effect is better, and the patient's
surgical satisfaction is higher.

Key words: gingival neoplasms, esthetics, dental, patient satisfaction, pedicled flap transplantation, flapsurgery,  connective tissue transplantation