Please grade each item. 0 = incomplete, inadequate dissection, 1 = complete, adequate
Cortex
1.	Cortex rounded at linea temporalis	0	1
2.	Cortex rounded from linea temporalis to middle cranial fossa	0	1
3.	Thinning of posterior canal wall	0	1
4.	Complete saucerization Tegmen mastoideum	0	1
5.	Dissection parallels curve of the dura	0	1
6.	Completely exposed	0	1
7.	No holes	0	1
8.	No cells remain Sigmoid Sinus	0	1
9.	No holes	0	1
10.	No cells	0	1
11.	No overhang	0	1
Sinodural Angle
12.	Sharp	0	1
13.	No cells remaining Digastric Ridge	0	1
14.	Identified	0	1
15.	Digastric tendon followed to stylomastoid foramen External Auditory Canal	0	1
16.	Canal Wall Up	0	1
17.	Without holes	0	1
18.	Without cells Semicircular Canals Skeletonized	0	1
19.	Horizontal	0	1
20.	Superior	0	1
21.	Posterior	0	1
22.	Blue lined without fenestra Facial Nerve	0	1
23.	Identification of nerve at the stylomastoid foramen	0	1
24.	Identification of nerve at the external genu	0	1
25.	Identification tympanic segment	0	1
26.	Identification of nerve at cochleariform process	0	1
27.	No exposed nerve sheath	0	1
28.	Identification of chorda tympani or stump	0	1
29.	Facial recess completely exposed Additional Anatomical Structures	0	1
30.	Stapedial muscle dissected	0	1
31.	ELS transition to duct	0	1
32.	Blue line of basal turn of the cochlea	0	1
33.	Identification of carotid artery in middle ear	0	1
34.	Identification of jugular bulb	0	1
35.	Skeletonization of jugular bulb	0	1

Difficulty of temporal bone
	1	2	3	4	5
	Very Easy	Easy	Average	Difficult	Very Difficult