下颌切牙区种植相关影像学测量及分析研究

doi:10.13591/j.cnki.kqyx.2024.04.003

Abstract

Abstract:

Objective To investigate the mesiodistal space in the area of multi-consecutive mandibular incisors,using CBCT image data, in order to provide a theoretical basis for the restoration of missing mandibular incisors and dental implant surgery. Methods CBCT imaging data of 500 patients were selected. The mesiodistal space in the area of multi-consecutive mandibular incisors were measured and statistically analyzed, and the feasibility of different implant placement strategies was evaluated. Results The mesiodistal space between two mandibular central incisors was (10.72±1.10)mm, and the mesiodistal space between mandibular central and lateral incisors were (11.33±1.00)mm and (11.45±0.98)mm on the left and right sides, respectively. The mesiodistal space between three consecutive mandibular incisors were (15.69±1.25)mm and (15.79±1.26)mm on the left and right sides, respectively. The mesiodistal space between four consecutive mandibular incisors was (20.76±1.48)mm. There was a gender difference in the mesiodistal space between mandibular incisor positions, with males having slightly larger space than females. Conclusion The mesiodistal space between mandibular incisors is narrow. When two consecutive incisors are missing, only a few patients are available for two narrow diameter implants, while others have to choose cantilever restoration. When more than two mandibular incisors are missing, most patients are available for two narrow diameter implants, restoring with implant-supported fix partial bridges.

Key words: mandibular incisor, mesiodistal space, dental implant, CBCT

CLC Number:

R783.4

ZHAI Jiabin, WU Wenli, SHEN Ming, CHEN Yingying. Radiological measurement and analysis of mesiodistal space at mandibular incisor positions[J]. Stomatology, 2024, 44(4): 250-254.

Figures/Tables 4

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References 22

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牙位区间	总体/mm (n=500)	性别差异
牙位区间	总体/mm (n=500)	男性/mm(n=244)	女性/mm(n=256)	t	P
31—41	10.72±1.10	10.88±1.23	10.57±0.93	3.189	0.002^*
31—32	11.33±1.00	11.43±1.09	11.24±0.90	2.189	0.029^*
41—42	11.45±0.98	11.56±1.07	11.34±0.88	2.591	0.010^*
32—41	15.69±1.25	15.89±1.37	15.51±1.09	3.429	<0.001^*
31—42	15.79±1.26	15.97±1.38	15.61±1.10	3.145	0.002^*
32—42	20.76±1.48	20.98±1.61	20.56±1.33	3.186	0.002^*

牙齿缺失位置	性别	可放入2枚?3.3 mm植体	可放入2枚?2.8 mm植体
2颗下中切牙区段	男(n=244)	7.38%(n=18)	25.00%(n=61)
	女(n=256)	1.95 %(n=5)	13.28%(n=34)
	合计(n=500)	4.60%(n=23)	19.00%(n=95)
含侧切牙的2颗下切牙区段	男(n=488)	13.32%(n=65)	46.31%(n=226)
	女(n=512)	6.84%(n=35)	35.74%(n=183)
	合计(n=1 000)	10.00%(n=100)	40.90%(n=409)

Radiological measurement and analysis of mesiodistal space at mandibular incisor positions

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