Table I.

Otologic studies classified according to each area of interest.

SURGICAL AND PRECLINICAL EDUCATION
Field of work	Authors, year	AM category	3D printer	3DP material
Temporal bone dissection training model	Cohen J et al., 2015 12	Material extrusion	Dimensions SST 1200es	Abs + resin (support material)
	Da Cruz MJ et al., 2015 13	Binder jetting	Spectrum Z510	Chalk-like powder + binder + colors
	Hochman JB et al., 2015(1) 14	Binder jetting	ZPrinter 650	Chalk-like powder + binder + colors
	Hochman JB et al., 2015(2) 15	Binder jetting	ZPrinter 650	Chalk-like powder + binder + colors
	Longfield EA et al., 2015 16	Binder jetting	Spectrum Z510	Chalk-like powder + binder + colors
	Mowry SE et al., 2015 17	Material extrusion	MakerBot 2x	ABS + HIPS
	Rose AS et al., 2015 18	Vat photopolymerisation	Objet Connex 350	Photo-polymer resins with different mechanical properties
	Hochman JB et al., 2014 19	Binder jetting	ZPrinter 650	Chalk-like powder + binder + colors
	Unger BJ et al., 2014 20	Binder jetting	ZPrinter 650	Chalk-like powder + binder + colors
	Mick PT et al., 2013 21	Binder jetting	ZPrinter 650	Zp®131 powder binder(Zb®7) + colors
	Roosli C et al., 2013 22	Binder jetting	Spectrum Z510	Chalk-like powder + binder + colors
	Bakhos D et al., 2010 23	Vat photopolymerisation	SLA® 5000	Somos® 14120
	Mori K, 2009 24	Powder bed fusion	NA (commercial available prototype)	Polyamide nylon and glass beads
	Mori K et al., 2009 25	Powder bed fusion	NA (commercial available prototype)	Polyamide nylon and glass beads
	Mori K et al., 2008 26	Powder bed fusion	NA (commercial available prototype)	Polyamide nylon and glass beads
	Suzuki M et al., 2007 27	Powder bed fusion	NA	Polyamide nylon and glass beads
	Grunert S et al., 2006 28	Binder jetting	Spectrum Z510	Plaster + post-processing with polyurethane and acetone
	Suzuki M et al., 2004(1) 29	Powder bed fusion	NA	Polyamide nylon and glass beads
	Suzuki M et al., 2004(2) 30	Powder bed fusion	NA	Polyamide nylon and glass beads
	Begall K et al., 1998 31	Vat photopolymerisation	Laser Model stereolithographic System by Fockele & Schwarze GmbH	Photosensitive; expoxy resins
Surgical middle ear training model	Monfared A et al., 2012 32	Material jetting	Objet Polyjet printer	Combination of 2 photosensitive resins
Endoscopic ear surgery training model	Barber SR et al., 2016 33	Binder jetting	ZPrinter 650	Zp® 151 composite material + binder (ColorBond zbond® 90) + colors
Functioning anatomical middle ear model	Kuru I et al., 2016 34	Powder bed fusion	EOS Formiga P100	Polyamide powder PA2200
CUSTOMISED SURGICAL PLANNING
Field of work	Authors, year	AM category	3D printer	3DP material
Temporal bone surgical simulation	Rose AS et al., 2015 35	Material jetting	Objet Connex 350	Photo-polymers with different mechanical properties
	Suzuki M et al., 2005 36	Powder bed fusion	NA	Polyamide nylon and glass beads
	Suzuki M et al., 2004(1) 29	Powder bed fusion	NA	Polyamide nylon and glass beads
	Lopponen H et al., 1997 37	Vat photopolymerisation	NA	Acrylic solution
	Andrews JC et al., 1994 38	Vat photopolymerisation	3D Systems SLA 250	Liquid plastic
Template-guided surgery	Pai I et al., 201639	Material jetting	Objet Eden 250	Transparent photo-polymer
	Matsumoto N et al., 201540	Vat photopolymerisation	NA	Transparent photo-polymer
	Cho B et al., 201441”	Material jetting	Objet Connex 500	Transparent photo-polymer
	Takumi Y et al., 201442	Vat photopolymerisation	NA	Transparent photo-polymer
Navigation for otoneurosurgery	Yamashita M et al., 2016 43	Material jetting	Objet Connex 500	Phantom	TangoPlus FLX930, VeroWhitePlus RGD835
				Template	VeroWhitePlus RGD835
	Ritacco LE et al., 2015 44	NA	NA	NA
	Oka M et al., 2014 45	NA	NA	NA
	Cho B et al., 2013 46	Powder bed fusion	NA	NA
	Matsumoto N et al., 2012 47	Powder bed fusion	NA	NA
	Matsumoto N et al., 2009 48	Powder bed fusion	NA	NA
Lateral skull base approaches	Muelleman TJ et al., 2016 49	Material extrusion	uPrint SE Plus	Thermo-plastic material
TISSUE ENGINEERING AND IMPLANTABLE PROSTDESIS
Field of work	Autdors, year	AM category	3D printer	3DP material
Prosthesis for superior canal dehiscence	Kozin ED et al., 2015 50	Vat photopolymerisation	FormLabs Form 1+	Photo-polymer
		Powder bed fusion	EOS Formiga	Plastic-based material; Aluminium-based material

ABS: Acrylonitrile Butadiene Styrene; PLA: PolyLactic Acid; HIPS: High Impact PolyStyrene; NA: not available.