1. The effect of two marginal designs (chamfer and shoulder) on the fracture resistance of all ceramic restorations, Inceram: An in vitro study 
Ezatollah Jalalian, DMD, Neda Sadat Aletaha, DDS 
Journal of Prosthodontic Research 
Volume 55, Issue 2, Pages (April 2011)
DOI: /j.jpor
Copyright © 2010 Japan Prosthodontic Society Terms and Conditions

2. Fig. 1 (a) Chamfer preparation and (b) shoulder preparation.
Journal of Prosthodontic Research  , DOI: ( /j.jpor )
Copyright © 2010 Japan Prosthodontic Society Terms and Conditions

3. Fig. 2
50in. chamfer margin was prepared on an extracted first maxillary premolar (a) the same tooth was converted into 90in. shoulder margin (b).
Journal of Prosthodontic Research  , DOI: ( /j.jpor )
Copyright © 2010 Japan Prosthodontic Society Terms and Conditions

4. Fig. 3
Impressions from the first maxillary premolar with 50in. chamfer margin were poured with epoxy resin and make epoxy resin dies with chamfer margin (a) impressions with 90in. shoulder margin were poured with epoxy resin and make epoxy resin dies with shoulder margin (b).
Journal of Prosthodontic Research  , DOI: ( /j.jpor )
Copyright © 2010 Japan Prosthodontic Society Terms and Conditions

5. Fig. 4
Universal testing machine (instron) with 5mm diameter stainless steel ball using for applying load on the alumina cores.
Journal of Prosthodontic Research  , DOI: ( /j.jpor )
Copyright © 2010 Japan Prosthodontic Society Terms and Conditions

6. Fig. 5
Fracture areas on the alumina core on its respective epoxy resin die after applying the load.
Journal of Prosthodontic Research  , DOI: ( /j.jpor )
Copyright © 2010 Japan Prosthodontic Society Terms and Conditions

7. Fig. 6
Graph: error bar, 95% confidence interval of fracture resistance in the 2 finishing line.
Journal of Prosthodontic Research  , DOI: ( /j.jpor )
Copyright © 2010 Japan Prosthodontic Society Terms and Conditions

8. Fig. 7
Graph: Kaplan–Meir, survival analysis for fracture resistance in the 2 finishing line.
Journal of Prosthodontic Research  , DOI: ( /j.jpor )
Copyright © 2010 Japan Prosthodontic Society Terms and Conditions

9. Fig. 8
Discrepancies between the restoration and tooth, in shoulder margin D=d so we have the worse marginal fitness.
Journal of Prosthodontic Research  , DOI: ( /j.jpor )
Copyright © 2010 Japan Prosthodontic Society Terms and Conditions