Sage Journals: Discover world-class research

Abstract

This study describes the identification of the main cause of deformation of titanium dental copings prepared by a new powder metallurgy method. The deformation was observed during the process development and needed to be explained to achieve an approved fit. The coping fabrication process was divided into stages to find the main cause of deformation. Each individual stage was investigated to find the cause. Primarily the pressing, milling and sintering steps and the tooth preparation dies (mandrels) were studied. The main cause of the deformation was found to be a deformation of the tooth preparation die during the pressing phase. The other stages were all shown to contribute only slightly or not measurably to the deformation. When using tooth preparation dies of a stronger material (stainless steel) the dies did not deform measurably during cold isostatic pressing and copings of various individual forms with an approved fit could be prepared.

Keywords

DEFORMATION TITANIUM POWDER DENTAL CROWN

Get full access to this article

View all access options for this article.

References

Eriksson

, ANDERSSON

and CARLSTROM

: Int. J. Prosthodont, 2003, 17, 11–16.

Andersson

, BERGMAN

, BESSING

, ERICSON

, LUNDQVIST

and NILSON

: Acta Odontol Scand, 1989, 47, 279–286.

Andersson

, CARLSSON

, PERSSON

and BERGMAN

: J. Prosthet Dent., 1996, 76, 187–193.

Russell

M. M.

, ANDERSSON

, DAHLMO

, RAZZOOG

M. E.

and LANG

B. R.

: Quintessence mt., 1995, 26, 757–763.

Andersson

and ODEN

: Acta Odontol Scand., 1993, 51, 59–64.

Persson

, ANDERSSON

and BERGMAN

: J. Prosthet Dent., 1995, 74, 223–229.

Ida

, TSUTSUMI

and TOGAYA

: J. Dent. Res., 1984, 63, 985–993.

Taira

, MOSER

J. B.

and GREENER

E. H.

: Dent. Mater., 1989, 5, 45–50.

Miyakawa

, WATANABE

, OKAWA

, NAKANO

, KOBAYASHI

and SHIOKAWA

: Dent. Mater. J. 1989, 8, 175–185.

10.

Ida

, TAKEUCHI

, TOGAYA

and TSUTSUMI

: J. Jpn Res. Soc. Dent. Mater. Appl., 1980, 37, 45–52.

11.

Wang

R. R.

and FENTON

: Quintessence Int, 1996, 27, 401–408.

12.

Klinger

, WALTER

and BOENING

: Dent. Labor., 1991, 39, 177–179.

13.

Stoll

, OKUNO

, Al

and STACHNISS

: ZWR, 1991, 100, 38–42.

14.

Ida

, TOGAYA

, TSUTSUMI

and TAKEUCHI

: Dent. Mater. J., 1982, 1, 8–21.

15.

Mori

, JEAN-LOUIS

, YABUGAMI

and TOGAYA

: Aust Dent. J, 1994, 39, 348–352.

16.

Chai

T. I.

and STEIN

R. S.

: J. Prosthet Dent., 1995, 73, 534–541.

17.

Christensen

G. J.

: J. Prosthet Dent., 1966, 16, 297–305.

18.

Harris

I. R.

and WICKENS

J. L.

: Int. J. Prosthodont, 1994, 4, 348–355.

19.

Abbate

, TJAN

A. H. L.

and FOX

W. M.

: J. Prosthet Dent., 1989, 61, 527–531.

20.

Shillingburg

H. T.

, HOBO

and FISHER

D. W.

: J. Prosthet. Dent., 1973, 29, 276–284.

21.

Sorensen

J. A.

: J. Prosthet Dent., 1990, 64, 18–24.

22.

Cooney

J. P.

, RICHTER

W. A.

and MACENTEE

M. I.

: J. Prosthet. Dent., 1985, 54, 1–5.

23.

Sato

, WOHLWEND

and SCHARER

: Int. J. Periodont Rest. Dent., 1986, 3, 9–21.

24.

Chan

, HARASZTHY

, GEIS-GERSTORFER

, WEBER

and HUETTEMAN

: Quintessence mt., 1989, 20, 189–193.

25.

Davis

D. R.

: J. Prosthet Dent., 1988, 59, 12–16.

26.

Gardner

F. M.

: J. Prosthet. Dent., 1982, 48, 396–400.

27.

Hunter

A. J.

and HUNTER

A. R.

: J. Prosthet Dent., 1990, 64, 636–642.

28.

X.-H.

and KERN

: Int. J. Prosthodont, 2003, 2, 109–116.

29.

Eriksson

, CARLSTROM

, ANDERSSON

, HOLMERSSON

and BERGGREN

: Powder Metall., 2004, 47, 273–277.

30.

Eriksson

, HAGGBLAD

H.-A.

, BERGGREN

, ANDERSSON

, HOLMERSSON

and CARLSTROM

: Powder Metall., 2004, 47, 335–342.

On deformation control of dental crowns prepared by titanium powder process

Abstract

Keywords

Get full access to this article

References