Non-thermal plasma treatment to enhance the adhesion between enamel surface and orthodontic bracket

Salem Almoammar, Ibrahim Alshahrani, Moshabab A. Asiry, Simone Duarte, Malvin Janal, Edmund Khoo

Research output: Contribution to journalArticle

Abstract

BACKGROUND: Adhesion strength of orthodontic attachments to enamel should be within optimal range to resist occlusal forces and to allow debonding without enamel damage. OBJECTIVE: The present study compared the effect of non-thermal plasma (NTP) and conventional surface treatment on the adhesion strength of orthodontic bracket to enamel. METHODS: A total of 100 premolar teeth were allocated into 5 groups according to the bonding procedure followed: Group 1 (Etch, prime and composite adhesive); Group 2 (Prime and composite adhesive); Group 3 (Glass ionomer cement); Group 4 (NTP, prime and composite adhesive) and Group 5 (NTP and glass ionomer cement). Ten specimens in each group were subjected to artificial aging and the remaining ten specimens served as baseline specimens. Adhesion strength values were recorded after debonding and bond failure types were scored. Water contact angles of the NTP treated and untreated enamel surface were measured. RESULTS: Group 1 specimen demonstrated highest bond strength at baseline (21.5 ± 3.01) and thermocycling (15.8 ± 2.87) and the least values were in Group 2 specimens at baseline (3.9 ± 1.01) and thermocycling (1.6 ± 0.7). Among the experimental (NTP) groups, Group 4 specimens exhibited high adhesion strength at baseline (10.2 ± 1.76) and after thermocycling (9.8 ± 2.15) compared to Group 5 specimens at baseline (10.1 ± 1.05) and thermocycling (6.5 ± 2.19). The water contact angle on untreated enamel surface was 53.1° ± 2.1° as compared to 1.4° ± 0.7° in treated surface. CONCLUSION: Non-thermal plasma (NTP) treatment in conjunction with composite adhesives demonstrated clinically acceptable adhesion strength and was well within the optimal range (7-14 MPa) for enamel bonding.

Original languageEnglish (US)
Pages (from-to)439-448
Number of pages10
JournalBio-Medical Materials and Engineering
Volume30
Issue number4
DOIs
StatePublished - Jan 1 2019

Fingerprint

Enamels
Bond strength (materials)
Adhesion
Thermal cycling
Plasmas
Adhesives
Glass Ionomer Cements
Ionomers
Debonding
Composite materials
Contact angle
Cements
Glass
Water
Surface treatment
Aging of materials

Keywords

  • acid etching
  • adhesion strength
  • Non-thermal plasma
  • orthodontic bonding

ASJC Scopus subject areas

  • Biomaterials
  • Biomedical Engineering

Cite this

Non-thermal plasma treatment to enhance the adhesion between enamel surface and orthodontic bracket. / Almoammar, Salem; Alshahrani, Ibrahim; Asiry, Moshabab A.; Duarte, Simone; Janal, Malvin; Khoo, Edmund.

In: Bio-Medical Materials and Engineering, Vol. 30, No. 4, 01.01.2019, p. 439-448.

Research output: Contribution to journalArticle

Almoammar, Salem ; Alshahrani, Ibrahim ; Asiry, Moshabab A. ; Duarte, Simone ; Janal, Malvin ; Khoo, Edmund. / Non-thermal plasma treatment to enhance the adhesion between enamel surface and orthodontic bracket. In: Bio-Medical Materials and Engineering. 2019 ; Vol. 30, No. 4. pp. 439-448.
@article{b69b1a01489643e69c3e3483a35df370,
title = "Non-thermal plasma treatment to enhance the adhesion between enamel surface and orthodontic bracket",
abstract = "BACKGROUND: Adhesion strength of orthodontic attachments to enamel should be within optimal range to resist occlusal forces and to allow debonding without enamel damage. OBJECTIVE: The present study compared the effect of non-thermal plasma (NTP) and conventional surface treatment on the adhesion strength of orthodontic bracket to enamel. METHODS: A total of 100 premolar teeth were allocated into 5 groups according to the bonding procedure followed: Group 1 (Etch, prime and composite adhesive); Group 2 (Prime and composite adhesive); Group 3 (Glass ionomer cement); Group 4 (NTP, prime and composite adhesive) and Group 5 (NTP and glass ionomer cement). Ten specimens in each group were subjected to artificial aging and the remaining ten specimens served as baseline specimens. Adhesion strength values were recorded after debonding and bond failure types were scored. Water contact angles of the NTP treated and untreated enamel surface were measured. RESULTS: Group 1 specimen demonstrated highest bond strength at baseline (21.5 ± 3.01) and thermocycling (15.8 ± 2.87) and the least values were in Group 2 specimens at baseline (3.9 ± 1.01) and thermocycling (1.6 ± 0.7). Among the experimental (NTP) groups, Group 4 specimens exhibited high adhesion strength at baseline (10.2 ± 1.76) and after thermocycling (9.8 ± 2.15) compared to Group 5 specimens at baseline (10.1 ± 1.05) and thermocycling (6.5 ± 2.19). The water contact angle on untreated enamel surface was 53.1° ± 2.1° as compared to 1.4° ± 0.7° in treated surface. CONCLUSION: Non-thermal plasma (NTP) treatment in conjunction with composite adhesives demonstrated clinically acceptable adhesion strength and was well within the optimal range (7-14 MPa) for enamel bonding.",
keywords = "acid etching, adhesion strength, Non-thermal plasma, orthodontic bonding",
author = "Salem Almoammar and Ibrahim Alshahrani and Asiry, {Moshabab A.} and Simone Duarte and Malvin Janal and Edmund Khoo",
year = "2019",
month = "1",
day = "1",
doi = "10.3233/BME-191065",
language = "English (US)",
volume = "30",
pages = "439--448",
journal = "Bio-Medical Materials and Engineering",
issn = "0959-2989",
publisher = "IOS Press",
number = "4",

}

TY - JOUR

T1 - Non-thermal plasma treatment to enhance the adhesion between enamel surface and orthodontic bracket

AU - Almoammar, Salem

AU - Alshahrani, Ibrahim

AU - Asiry, Moshabab A.

AU - Duarte, Simone

AU - Janal, Malvin

AU - Khoo, Edmund

PY - 2019/1/1

Y1 - 2019/1/1

N2 - BACKGROUND: Adhesion strength of orthodontic attachments to enamel should be within optimal range to resist occlusal forces and to allow debonding without enamel damage. OBJECTIVE: The present study compared the effect of non-thermal plasma (NTP) and conventional surface treatment on the adhesion strength of orthodontic bracket to enamel. METHODS: A total of 100 premolar teeth were allocated into 5 groups according to the bonding procedure followed: Group 1 (Etch, prime and composite adhesive); Group 2 (Prime and composite adhesive); Group 3 (Glass ionomer cement); Group 4 (NTP, prime and composite adhesive) and Group 5 (NTP and glass ionomer cement). Ten specimens in each group were subjected to artificial aging and the remaining ten specimens served as baseline specimens. Adhesion strength values were recorded after debonding and bond failure types were scored. Water contact angles of the NTP treated and untreated enamel surface were measured. RESULTS: Group 1 specimen demonstrated highest bond strength at baseline (21.5 ± 3.01) and thermocycling (15.8 ± 2.87) and the least values were in Group 2 specimens at baseline (3.9 ± 1.01) and thermocycling (1.6 ± 0.7). Among the experimental (NTP) groups, Group 4 specimens exhibited high adhesion strength at baseline (10.2 ± 1.76) and after thermocycling (9.8 ± 2.15) compared to Group 5 specimens at baseline (10.1 ± 1.05) and thermocycling (6.5 ± 2.19). The water contact angle on untreated enamel surface was 53.1° ± 2.1° as compared to 1.4° ± 0.7° in treated surface. CONCLUSION: Non-thermal plasma (NTP) treatment in conjunction with composite adhesives demonstrated clinically acceptable adhesion strength and was well within the optimal range (7-14 MPa) for enamel bonding.

AB - BACKGROUND: Adhesion strength of orthodontic attachments to enamel should be within optimal range to resist occlusal forces and to allow debonding without enamel damage. OBJECTIVE: The present study compared the effect of non-thermal plasma (NTP) and conventional surface treatment on the adhesion strength of orthodontic bracket to enamel. METHODS: A total of 100 premolar teeth were allocated into 5 groups according to the bonding procedure followed: Group 1 (Etch, prime and composite adhesive); Group 2 (Prime and composite adhesive); Group 3 (Glass ionomer cement); Group 4 (NTP, prime and composite adhesive) and Group 5 (NTP and glass ionomer cement). Ten specimens in each group were subjected to artificial aging and the remaining ten specimens served as baseline specimens. Adhesion strength values were recorded after debonding and bond failure types were scored. Water contact angles of the NTP treated and untreated enamel surface were measured. RESULTS: Group 1 specimen demonstrated highest bond strength at baseline (21.5 ± 3.01) and thermocycling (15.8 ± 2.87) and the least values were in Group 2 specimens at baseline (3.9 ± 1.01) and thermocycling (1.6 ± 0.7). Among the experimental (NTP) groups, Group 4 specimens exhibited high adhesion strength at baseline (10.2 ± 1.76) and after thermocycling (9.8 ± 2.15) compared to Group 5 specimens at baseline (10.1 ± 1.05) and thermocycling (6.5 ± 2.19). The water contact angle on untreated enamel surface was 53.1° ± 2.1° as compared to 1.4° ± 0.7° in treated surface. CONCLUSION: Non-thermal plasma (NTP) treatment in conjunction with composite adhesives demonstrated clinically acceptable adhesion strength and was well within the optimal range (7-14 MPa) for enamel bonding.

KW - acid etching

KW - adhesion strength

KW - Non-thermal plasma

KW - orthodontic bonding

UR - http://www.scopus.com/inward/record.url?scp=85072559562&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85072559562&partnerID=8YFLogxK

U2 - 10.3233/BME-191065

DO - 10.3233/BME-191065

M3 - Article

C2 - 31476144

AN - SCOPUS:85072559562

VL - 30

SP - 439

EP - 448

JO - Bio-Medical Materials and Engineering

JF - Bio-Medical Materials and Engineering

SN - 0959-2989

IS - 4

ER -