Operative dentistry aje qualtrough, jd satterthwaite la morrow, pa brunton

Principles of preparation for indirect restorations
(1) Preservation of tooth structure
• Protection from fracture and wear
• Pattern of tooth substance removal
• Type of restoration
(2) Retention and resistance
• Retention
— Height of preparation
— Diameter
— Surface texture
— Taper
• Resistance
— Increased height
— Reduced taper
— Additional features
(3) Marginal integrity
• Feather edge
• Shoulder
• Chamfer
• Bevelled shoulder
(4) Strength and structural durability
(5) Occlusal stability
Principles of indirect restoration


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REFERENCES
1.
Hansen E.K. and Asmussen E. In vivo fractures of endodontically treated
posterior teeth restored with enamel-bonded resin. Endod Dent
Traumatol, 1990; 6: 218–25.
2.
Mach Z., Regent J., Staninec M., Mrklas L. and Setcos J.C. The integrity 
of bonded amalgam restorations: a clinical evaluation after five years. 
J Am Dent Assoc, 2002; 133: 460–7.
3.
Doukoudakis S. and Doukoudakis A. Amalgam onlay restoration. 
J Prosthet Dent, 1991; 66: 493–7.
4.
Wendt S.L., Jr and Leinfelder K.F. Clinical evaluation of a heat-treated
resin composite inlay: 3-year results. Am J Dent, 1992; 5: 258–62.
SUMMARY
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Chapter 5
5.
Nayyar A., Walton R.E. and Leonard L.A. An amalgam coronal-
radicular dowel and core technique for endodontically treated posterior
teeth. J Prosthet Dent, 1980; 43: 511–15.
6.
Hoag E.P. and Dwyer T.G. A comparative evaluation of three post and
core techniques. J Prosthet Dent, 1982; 47: 177–81.
7.
Ranby B. and Rabek J.F. Photodegradation, photo-oxidation and 
photostabilization of polymers: principles and applications. London,
Wiley, 1975, pp. 241–3.
8.
Oliva R.A. and Lowe J.A. Dimensional stability of composite used as a
core material. J Prosthet Dent, 1986; 56: 554–61.
9.
King P.A., Setchell D.J. and Rees J.S. Clinical evaluation of a carbon fibre
reinforced carbon endodontic post. J Oral Rehabil, 2003; 30: 785–9.
10.
Shillingburg H.T.J., Hobo S., Whitsett L.D., Jacobi R. and Brackett S.E.
Fundamentals of Fixed Prosthodontics, 3rd edn. Chicago, Quintessence, 1997.
11.
Aminian A. and Brunton P.A. A comparison of the depths produced
using three different tooth preparation techniques. J Prosthet Dent, 2003;
89
: 19–22.
12.
Brunton P.A., Aminian A. and Wilson N.H.F. Tooth preparation 
techniques for porcelain laminate veneers. Br Dent J, 2000; 189: 260–2.
13.
Jorgensen K.D. The relationship between retention and convergence
angle in cemented veneer crowns. Acta Odontol Scand, 1955; 13: 35–40.
14.
Lorey R.E. and Myers G.E. The retentive qualities of bridge retainers. 
J Am Dent Assoc, 1968; 76: 568–72.
15.
Smith C.T., Gary J.J., Conkin J.E. and Franks H.L. Effective taper criterion
for the full veneer crown preparation in preclinical prosthodontics. 
J Prosthodont, 1999; 8: 196–200.
16.
Nordlander J., Weir D., Stoffer W. and Ochi S. The taper of clinical prepa-
rations for fixed prosthodontics. J Prosthet Dent, 1988; 60: 148–51.
17.
Owen C.P. Retention and resistance in preparations for extracoronal
restorations. Part II: Practical and clinical studies. J Prosthet Dent, 1986;
56
: 148–53.
18.
Silness J. Periodontal conditions in patients treated with dental bridges.
3. The relationship between the location of the crown margin and the
periodontal condition. J Periodontal Res, 1970; 5: 225–9.
19.
Silness J. Periodontal conditions in patients treated with dental bridges.
2. The influence of full and partial crowns on plaque accumulation,
development of gingivitis and pocket formation. J Periodontal Res, 1970;
5
: 219–24.
20.
Felton D.A., Kanoy B.E., Bayne S.C. and Wirthman G.P. Effect of in vivo
crown margin discrepancies on periodontal health. J Prosthet Dent, 1991;