Shear's Cysts of the Oral and Maxillofacial Regions. Paul M. Speight

cyst of adults 16 0.2 Glandular odontogenic cyst 11 0.2 Gingival cyst of infants 1 0.0 Total 7121 100.00

Table 1.3 Frequency (%) of the three most common odontogenic cysts in selected case series with a wide geographical distribution.

References	Country	N	Radicular cyst a	Dentigerous cyst b	Odontogenic keratocyst	Other	Males (%)
Daley et al. (1994 )	Canada	6847	65.2	24.1	4.9	5.8	NR
Mosqueda‐Taylor et al. (2002 )	Mexico	856	42.1	33.0	21.5	3.4	53.1
Meningaud et al. (2006 )	France	695	58.2	22.3	19.1	0.5	65.0
Jones et al. (2006 )	UK	7121	60.3	18.4	11.6	8.1	55.9
Ochsenius et al. (2007 )	Chile	2944	61.9	18.5	14.3	5.3	52.8
Grossmann et al. (2007 )	Brazil	2812	63.0	26.1	7.4	3.5	50.0
Tortorici et al. (2008 )	Italy (Sicily)	1273	84.5	11.4	1.3	2.8	53.9
Ali (2011 )	Kuwait	196	52.6	26.0	15.3	6.1	57.6
Sharifian and Khalili (2011 )	Iran	1227	45.8	24.7	19.4	10.1	57.1
Ramachandra et al. (2011 )	India	252	50.3	22.4	27.4	NI	61.2
Manor et al. (2012 )	Israel	285	56.1	28.8	8.0	7.0	59.7
Soluk Tekkesin et al. (2012b )	Turkey	5003	65.6	10.6	20.9	2.9	57.6
Tamiolakis et al. (2019 )	Greece	5165	73.2	14.8	8.4	3.6	61.5
Bhat et al. (2019 )	India	125	60.8	22.4	13.6	3.2	67.9
Kammer et al. (2020 )	Brazil	406	53.4	14.0	15.0	17.5	56.7
Aquilanti et al. (2021 )	Italy	2150	57.0	23.5	13.0	6.5	63.3

      N, total number of odontogenic cysts – frequencies are proportions of odontogenic cysts only; NI, not included – proportions only given for the three main cyst types; NR, not reported.

      ^a Data for radicular cyst includes residual cysts.

      ^b Data for dentigerous cyst includes eruption cysts.

      Among other cyst types, Jones and Franklin (2006a ) found that the most common were mucoceles (3.9%; n = 1720), while all other cysts were rare (less than 1.0%).

      These data show that cysts are relatively common and that the most commonly encountered are the radicular cyst, dentigerous cyst, and mucoceles. They also suggest that when a periapical radiolucency is seen, about 50% will be a radicular cyst and 50% will be a periapical granuloma. Details of the frequency and incidence of each cyst type are illustrated and discussed in the following chapters.

2 General Considerations

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