occlus-
combining form 
or occluso-
Etymology: probably from (assumed) New Latin occlus-, from Latin occlusus, past participle of occludere to occlude 
1. : occlusion 
< occlusal >
< occlusometer >
2. : occlusal and 
< occlusogingival >
or occluso-
1.
< occlusal >
< occlusometer >
2.
< occlusogingival >