Analysis of retrieval of dental implants displaced into ectopic locations between 2015–2017 and 2018–2020: scoping review of literature

Tadakazu Miyao; Shigeo Osato; Irika Miyao; Yukari Nakajima; Masayori Shirakawa

doi:10.1051/mbcb/2022008

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Volume 28 / No 3 (2022)

J Oral Med Oral Surg, 28 3 (2022) 28

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Systematic Review

Table 2

Comparison of the mean age and frequency distributions between early phase (EP) and late phase (LP) regarding 10 items (a–j) for displaced dental implant articles.

	Research items	Factor	Early-phase	Late-phase	Total	P-values
A	Country^*		11	10	21	1.0000^†
B	Article		17	15	32	0.8601^†
C	Articles by year	Correlation^‡	Refer Fig. 2		Pearson’s r = 0.06	0.9157^§

D	Case	Males and females	50	42	92	0.4657^†

E	Age		n = 35	n = 18	53

		Mean ± SE	55.9 ± 1.8	55.3 ± 2.5		0.7212^‖

F	Sex	Male	31	24	55	0.6739^¶
		Female	19	18	37
G	Anatomical sites	MS	46	34	80	0.1336^¶
		OTH	4	8	12
H	Treatment techniques	IS	30	7	37	0.0000^¶
		ES	19	33	52
I	Surgical approaches	TOA	30	6	36	0.0000^¶
		TNA	2	27	29
J	Anesthesia types	LA	22	9	31	0.0007^¶
		GA	12	29	41

Abbreviations: ES, endoscopic surgery; IS: intraoral surgery; GA: general anesthesia; LA, local anesthesia; MS, maxillary sinus; n, number of patients; OTH, other regions; SE, standard error; TNA: transnasal approach; TOA, transoral approach.

^*Duplicate country names were counted as one.

^†Exact binomial tests.

^‡Pearson’s correlation coefficient (r) between publication year and the number of articles

^§Pearson’s correlation test.

^|Mann–Whitney U-test.

^¶Fisher’s exact test.

A P-value of less than 0.05 was considered to be statistically significant.

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