Correlation between differences in intraoperative jumping gaps and soft tissue changes around immediate implant placement and provisionalization in the maxillary anterior region

doi:10.7518/hxkq.2023.2023153

Abstract

Abstract:

Objective This study aims to evaluate the correlation between differences in intraoperative jumping gaps and soft tissue changes around immediate implant placement and provisionalization (IIPP) in the maxillary anterior region. Results will provide a basis for clinical evaluation of the change trend and long-term stability of the labial soft tissue contours of patients with different jumping gaps. Methods Thirty-two patients with single tooth loss in the maxillary aesthetic area were enrolled, and they all received immediate implant placement and restoration. All patients were divided into three groups: A, B, and C according to the size of the jumping gap, group A: horizontal defect dimension (HDD) ≤2 mm; group B: 2 mm<HDD≤3 mm; group C: HDD>3 mm. Geomagic studio 2013 was used to quantitatively analyze the contour volume of the soft tissue around the implant and the level of the labial gingival margin. The pink esthetic score (PSE) was used for the final aesthetic evaluation. Results All implants had osseointegration within 6 months after the surgery. The average thickness of soft tissue contour volume changed by 0.62 mm±0.15 mm, and the average PES was 11.09±0.99. The changes in the gingival mucosa levels in the three groups at 6 months after operation were 0.45 mm±0.11 mm, 0.40 mm±0.12 mm, and 0.35 mm± 0.11 mm, respectively. The changes in the average thickness of the soft tissue contour volume in the three groups at 6 months after the operation were 0.77 mm±0.16 mm, 0.63 mm±0.17 mm, and 0.54 mm±0.11 mm. A moderate negative correlation was found between the jumping gap size and the gingival mucosa level, and the average thickness changed. No significant correlation was found between size of jumping gap and PES. Conclusion Although the contour volume of the labial soft tissue continuously decreased within 6 months after IIPP in the maxillary anterior region, the surgical procedure can achieve a satisfactory aesthetic effect, and the level of soft tissue around the implant can be well maintained.

Key words: esthetics zone, immediate implant placement and provisionalization, jumping gap, soft tissue

CLC Number:

R 783

Zhang Sui, Sun Yi, Huang Changbo, He Dongning. Correlation between differences in intraoperative jumping gaps and soft tissue changes around immediate implant placement and provisionalization in the maxillary anterior region[J]. West China Journal of Stomatology, 2023, 41(6): 678-685.

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测量指标	术后1月（T₁）	术后3月（T₂）	术后6月（T₃）	P值
?ML/mm	0.24±0.12	0.31±0.21	0.42±0.12	0.031
?d/mm	0.32±0.12	0.53±0.14	0.62±0.15	<0.001
?d≤0.5 mm	30（94%）	27（84%）	6（19%）	-
0.5 mm<?d≤1 mm	2（6%）	15（16%）	24（75%）	-
?d>1 mm	0	0	2（6%）	-
PES	11.24±0.87	11.21±0.93	11.09±0.99	0.284

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