Table 2.

Incremental effects of dental schools in primary and secondary medical care zones

	The number of dentists per 100,000 population			Incremental effects
	Zones other than target zones, median	Target zones (A)	Surrounding zones (B)	B/A × 100 (%)
Primary medical care zones
Kanagawa prefecture	66.6
Showa University		223.7	95.7	42.8
Kanagawa Dental University		124.3	80.2	64.5
Chiba prefecture	63.9
Tokyo Dental College		332.9	75.3	22.6
Nihon University, School of Dentistry at Matsudo		154.5	72.1	46.7
Tokyo	74.2
The Nippon Dental University and Nihon University		3,087.6	307.6	10.0
Showa University		156.5	94.1	60.1
Tokyo Medical and Dental University		523.9	170.1	32.5
Saitama prefecture	62.9
Meikai University		345.0	76.1	22.1
Secondary medical care zones
Kanagawa prefecture	63.5
Showa University		82.7	73.8	89.2
Kanagawa Dental University		106.7	68.5	64.2
Chiba prefecture	59.5
Tokyo Dental College		119.0	58.0	48.7
Nihon University, School of Dentistry at Matsudo		87.7	61.7	70.4
Tokyo	85.1
The Nippon Dental University, Nihon University, and Tokyo Medical and Dental University		929.6	109.4	11.8
Showa University		155.2	120.8	77.8
Saitama prefecture
Meikai University	109.4	62.2	56.9

A target zone indicates a medical care zone with a dental university.