Journal List > J Korean Acad Prosthodont > v.57(2) > 1121594

Roh, Jeon, Jeong, Yun, Huh, Lee, Yang, and Bae: A prospective clinical of lithium disilicate pressed zirconia and monolithic zirconia in posterior implant-supported prostheses: A 24-month follow-up

Abstract

Purpose

The purpose of this study was to compare the clinical outcomes of lithium disilicate ceramic pressed zirconia prostheses and monolithic zirconia prostheses and to investigate the complications after two years of follow-up in posterior edentulous site.

Materials and methods

A total 17 patients (male: 12, female: 5) were treated with 60 posterior fixed implant-supported prostheses (LP. lithium disilicate ceramic pressed zirconia prostheses: n = 30, MZ. monolithic zirconia prostheses: n = 30). After 24-month, clinical examination of Implant survival rate, marginal bone resorption, probing depth, plaque index, bleeding index, calculus and complications were evaluated.

Results

There were no failed implants and all implants were normal in function without mobility. Marginal bone resorption was lower in LP group than MZ group at 12-month (P < .05), and 12-month probing depth and calculus deposit in LP group were significantly higher than MZ group (P < .05). Most common complications in MZ were marginal bone resorptions more than 1.5.mm and 2 chipping occurred in LP group.

Conclusion

Within the limitations of the present study, lithium disilicate ceramic pressed zirconia is considered as a predictable treatment option as much as monolithic zirconia in posterior fixed implant-supported prostheses.

Figures and Tables

Fig. 1

Comparison of marginal bone resorption

(MZ: Monolithic zirconia, LP: Lithium disilicate ceramic pressed zirconia).
jkap-57-134-g001
Fig. 2

Comparison of probing depth

(MZ: Monolithic zirconia, LP: Lithium disilicate pressed zirconia).
jkap-57-134-g002
Table 1

Type of complications

jkap-57-134-i001
Table 2

Cumulative survival rate of the implants

jkap-57-134-i002

MZ: monolithic zirconia, LP: lithium disilicate pressed zirconia, CSR: Cumulative survival rate of implants.

Table 3

The average value of marginal bone resorption

jkap-57-134-i003

MZ: monolithic zirconia, LP: lithium disilicate pressed zirconia.

* Mean values showed significant difference based on independent T-test.

Table 4

The average value of probing depth

jkap-57-134-i004

MZ: monolithic zirconia, LP: lithium disilicate pressed zirconia.

* Mean values showed significant difference based on independent T-test.

Table 5

Plaque index and calculus, bleeding index

jkap-57-134-i005

MZ: monolithic zirconia, LP: lithium disilicate pressed zirconia.

* Frequency distribution of plaque index, calculus, bleeding index.

Frequency distribution showed significant difference based on chi-square.

Table 6

Incidence of complications

jkap-57-134-i006

MZ: monolithic zirconia, LP: lithium disilicate pressed zirconia.

Notes

This study was supported by a 2-year research grant from Pusan National University.

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TOOLS
ORCID iDs

Kyoung-Woo Roh
https://orcid.org/0000-0001-5376-5451

Young-Chan Jeon
https://orcid.org/0000-0001-6615-7797

Chang-Mo Jeong
https://orcid.org/0000-0001-5009-9799

Mi-Jung Yun
https://orcid.org/0000-0003-3093-8406

Jung-Bo Huh
https://orcid.org/0000-0001-7578-1989

So-Hyoun Lee
https://orcid.org/0000-0003-3094-6086

Dong-Seok Yang
https://orcid.org/0000-0003-0504-1074

Eun-Bin Bae
https://orcid.org/0000-0002-9524-3835

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