基于CBCT观察上颌阻生尖牙患者蝶鞍形态变异情况

doi:10.13591/j.cnki.kqyx.2024.02.005

Abstract

Abstract:

Objective To investigate the correlations between morphological variations of sella turcica and the buccally and palatally impacted maxillary canines(BIC/PIC)using the cone-beam computed tomography(CBCT)to assist prediction and prompt clinical intervention. Methods One hundred and twenty-five patients with impacted maxillary canines(experimental group) and 125 gender, age and Angle’s classification matching subjects with normally erupted canines(control group) were included into this study. The experimental group were later divided into the buccally-impacted canine(BIC) and palatally-impacted canine(PIC) sub-groups. CBCT data of all samples were imported into Dolphin software for reconstruction of lateral cephalograms and 3D images. The incidence along with the distribution type(type Ⅰ, Ⅱ, Ⅲ) of sella turcica bridging in each group were observed and recorded. SPSS 25.0 software was employed for statistical analysis of the results. Results The incidence of sella turcica bridging in the experimental group was significantly higher than that of the control group(P=0.004). In PIC subgroup also, the incidence was significantly higher than that of control group(P=0.007). Significant statistical differences were found in type Ⅱ and Ⅲ sella turcica bridging distribution type between PIC subgroup and control group(P=0.012). However, regarding BIC sub-group, no significant difference was noticed concerning the sella turcica bridging occurrence compared to control group. There was also no significant difference in the incidence of sella turcica bridging in 3D reconstructed images among all groups(P>0.05). Conclusion There is a correlation between the impacted maxillary canines and the incidence of sella turcica bridging. However, the sella turcica bridging is more likely to occur only in PIC patients, while no recognizable morphological variation is detected in BIC patients regarding sella turcica.

Key words: cone-beam computed tomography (CBCT), maxillary impacted canines, sella turcica bridging

CLC Number:

R783.5

MIAO Shiwei, YAN Qinyue, HU Danyan, CAO Dan, Izadikhah Iman, YAN Bin. Morphological anomalies of sella turcica patients with maxillary impacted canines: A cone-beam computed tomography study[J]. Stomatology, 2024, 44(2): 105-109.

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References 24

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特征	研究组		对照组 (n=125)	P
特征	BIC组 (n=64)	PIC组 (n=61)	对照组 (n=125)	P
性别				0.955^a
女,n(%)	35(54.7)	35(57.4)	70(56.0)
男,n(%)	29(45.3)	26(42.6)	55(44.0)
年龄/岁	20.81±5.59	20.39±5.04	20.61±5.32	0.908^b
安氏分类				0.680^a
安氏Ⅰ类,n(%)	25(39.1)	30(49.1)	55(44.0)
安氏Ⅱ类,n(%)	26(40.6)	17(27.9)	43(34.4)
安氏Ⅲ类,n(%)	13(20.3)	14(23.0)	27(21.6)

分组	Ⅰ型	Ⅱ型	Ⅲ型	P
研究组	38(30.4)	79(63.2)	8(6.4)	0.009^*
对照组	60(48.0)	62(49.6)	3(2.4)	0.009^*

分组	Ⅰ型	Ⅱ型	Ⅲ型	P
研究组	64(51.2)	53(42.4)	8(6.4)	0.071
对照组	77(61.6)	46(36.8)	2(1.6)	0.071

分组	Ⅰ型	Ⅱ型	Ⅲ型	P
阻生侧	70(65.4)	31(29.0)	6(5.6)		0.972
对照侧	68(63.6)	33(30.8)	6(5.6)		0.972

分组	Ⅰ型	Ⅱ型	Ⅲ型	P
BIC组	22(34.4)	38(59.4)	4(6.2)	0.036^*
PIC组	16(26.2)	41(67.2)	4(6.6)
对照组	60(48.0)	62(49.6)	3(2.4)

Morphological anomalies of sella turcica patients with maxillary impacted canines: A cone-beam computed tomography study

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分组	Ⅰ型	Ⅱ型	Ⅲ型	P
BIC组	33(51.6%)	27(42.2%)	4(6.2%)	0.254
PIC组	31(50.8%)	26(42.6%)	4(6.6%)
对照组	77(61.6%)	46(36.8%)	2(1.6%)