ASSESSMENT OF VARIOUS SURFACE TREATMENTS ON PULL OFF OF POLYETHERETHERKETONE ANTERIOR CROWN
waz, S., Ziada, A. (2020). ASSESSMENT OF VARIOUS SURFACE TREATMENTS ON PULL OFF OF POLYETHERETHERKETONE ANTERIOR CROWN. EKB Journal Management System, 66(Issue 2 - April (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics)), 1253-1259. doi: 10.21608/edj.2020.28293.1105
shams waz; Ahmed Ziada. "ASSESSMENT OF VARIOUS SURFACE TREATMENTS ON PULL OFF OF POLYETHERETHERKETONE ANTERIOR CROWN". EKB Journal Management System, 66, Issue 2 - April (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics), 2020, 1253-1259. doi: 10.21608/edj.2020.28293.1105
waz, S., Ziada, A. (2020). 'ASSESSMENT OF VARIOUS SURFACE TREATMENTS ON PULL OFF OF POLYETHERETHERKETONE ANTERIOR CROWN', EKB Journal Management System, 66(Issue 2 - April (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics)), pp. 1253-1259. doi: 10.21608/edj.2020.28293.1105
waz, S., Ziada, A. ASSESSMENT OF VARIOUS SURFACE TREATMENTS ON PULL OFF OF POLYETHERETHERKETONE ANTERIOR CROWN. EKB Journal Management System, 2020; 66(Issue 2 - April (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics)): 1253-1259. doi: 10.21608/edj.2020.28293.1105

ASSESSMENT OF VARIOUS SURFACE TREATMENTS ON PULL OFF OF POLYETHERETHERKETONE ANTERIOR CROWN

Egyptian Dental Journal
Article 14, Volume 66, Issue 2 - April (Fixed Prosthodontics, Dental Materials, Conservative Dentistry & Endodontics), April 2020, Page 1253-1259  XML PDF (898.98 K)
Document Type: Original Article
DOI: 10.21608/edj.2020.28293.1105
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Authors
shams waz email orcid 1; Ahmed Ziadaorcid 2
1Lecturer of Fixed Prosthodontics, Faculty of Dentistry, Minia University, Minia, Egypt.
2Lecturer of Fixed Prosthodontics, Faculty of Dentistry, Beni suef University, Beni suef Egypt
Abstract
ABSTRACT
Objectives: to assess the pull off of Polyetheretherketone (PEEK) anterior crown after various
surface treatments.
Materials& Methods: Twenty Polyetheretherketone (PEEK) full coverage crown were
constructed on prepared human maxillary central incisors. All of the crowns (n=20) were divided
into four groups according to the surface treatment used group I ) Control , 2) 98% Sulphric acid, 3)
9.5% Hydrofluoric acid (HF ) 4) Air Abrasion with 50 μm AL2
O3
.( n=5 in each ) Afterwards, each
crown specimens were cementeded to corresponding abutments using self-adhesive resin cement
RelyX U200. Then, subjected to thermo cycling (5°C - 55°C,5000 cycles,). A universal testing
machine was used to assess pull-off test. Data were collected, tabulated and statistically evaluated.
Results: The mean pull off values were ranked as follows: group II (253.81±7.67 N) > group
IV (221.18±3.91N) ≥ group III (203.20±8.23N) > group I (135.91±9.92N). The highest and lowest
Pull off values was obtained in group II (253.81±7.67 N) and group I (135.91±9.92N), respectively.
Conclusions: 98% sulphric acid PEEK surface treatment is recommended to achieve high
retentive strength.
Keywords
Keywords: Anterior crown; Polyetheretherketone (PEEK); surface treatments; Pull Off test
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