Otwarty dostęp

Pulp chamber temperature changes during orthodontic bonding – an in vitro study

Aysegul Ayhan Bani
Aysegul Ayhan Bani
, 
Burcu Balos Tuncer
Burcu Balos Tuncer
 oraz 
Cumhur Tuncer
Cumhur Tuncer
   | 21 paź 2021
Australasian Orthodontic Journal's Cover Image
O artykule
Poprzedni artykuł
Następny artykuł
Zacytuj
Article Category: research-article
Data publikacji: 21 paź 2021
Zakres stron: 157 - 164
DOI: https://doi.org/10.21307/aoj-2021.017
© 2021 Aysegul Ayhan Bani et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.

Figure 1.

(A) Sample molded in the acrylic until cemento-enamel junction; (B, C) device used to slice the samples into two halves.
(A) Sample molded in the acrylic until cemento-enamel junction; (B, C) device used to slice the samples into two halves.

Figure 2.

Sample was sliced into two halves through the middle.
Sample was sliced into two halves through the middle.

Figure 3.

Thermal camera images at the (A) beginning and (B) end of curing.
Thermal camera images at the (A) beginning and (B) end of curing.

Comparisons of pulp chamber temperature changes with light sources irradiated at 5 mm.

n Mean ± SD p
Halogen – Metallic brackets – 5 mm 10 1.57 ± 0.63c <0.05
LED – Metallic brackets – 5 mm 10 0.85 ± 0.27b <0.05
Powered LED – Metal brackets – 5 mm 10 0.78 ± 0.29b <0.05
High powered LED – Metallic brackets – 5 mm 10 0.37 ± 0.08a ns
Halogen – Ceramic brackets – 5 mm 10 1.31 ± 0.34c <0.05
LED – Ceramic brackets – 5 mm 10 0.75 ± 0.23b <0.05
Powered LED – Ceramic brackets – 5 mm 10 0.91 ± 0.33b <0.05
High powered LED – Ceramic brackets – 5 mm 10 0.41 ± 0.15a ns

Pulp chamber temperature changes in subgroups and statistical comparisons.

Groups n Mean ± SD p
Halogen – Metallic brackets – 10 mm 10 0.84 ± 0.14X <0.05
Halogen – Metallic brackets – 5 mm 10 1.57 ± 0.63Y ns
Halogen – Ceramic brackets – 10 mm 10 0.90 ± 0.21X <0.05
Halogen – Ceramic brackets – 5 mm 10 1.31 ± 0.34Y ns
LED – Metallic brackets – 10 mm 10 0.17 ± 0.13A <0.05
LED – Metallic brackets – 5 mm 10 0.85 ± 0.27B ns
LED – Ceramic brackets – 10 mm 10 0.09 ± 0.09A <0.05
LED – Ceramic brackets – 5 mm 10 0.75 ± 0.23B ns
Powered LED – Metallic brackets – 10 mm 10 0.45 ± 0.08a <0.05
Powered LED – Metallic brackets – 5 mm 10 0.78 ± 0.29b ns
Powered LED – Ceramic brackets – 10 mm 10 0.49 ± 0.17a <0.05
Powered LED – Ceramic brackets – 5 mm 10 0.91 ± 0.33b ns
High powered LED – Metallic brackets – 10 mm 10 0.24 ± 0.061 <0.05
High powered LED – Metallic brackets – 5 mm 10 0.37 ± 0.082 ns
High powered LED – Ceramic brackets – 10 mm 10 0.22 ± 0.071 <0.05
High powered LED – Ceramic brackets – 5 mm 10 0.41 ± 0.152 ns

Technical details about light sources.

Light sources/models Manufacturer Power intensity Wavelength Cure
Halogen (Optilux 401) Kerr, West Collins, USA 550 mW/cm² 400–515 nm 40 sec
LED (EliparFreelight II) 3 M ESPE, MN, USA 1200 mW/cm² 430–480 nm 10 sec
Powered LED (Valo Ortho) Ultradent Products Inc, USA 1200 mW/cm² 395–480 nm 10 sec
High-powered LED (Valo Ortho) Ultradent Products Inc, USA 3200 mW/cm² 395–480 nm 3 sec

Pulpal temperature changes of light sources and statistical comparison.

Pulpal temperature changes
Light sources n Mean ± SD p
Halogen 40 1.15 ± 0.52a <0.05
LED 40 0.46 ± 0.39b ns
Powered LED 40 0.65 ± 0.30b ns
High-powered LED 40 0.31 ± 0.12b ns

Pulpal temperature changes relative to bracket types and statistical comparison.

Pulpal temperature changes
n Mean ± SD p
Bracket type
Metallic 80 0.65 ± 0.50a ns
Ceramic 80 0.63 ± 0.43a ns

Pulpal temperature changes relative to curing distance and statistical comparison.

Pulpal temperature changes
n Mean ± SD p
Curing distance
5 mm 80 0.86 ± 0.47a <0.05
10 mm 80 0.42 ± 0.24b

Comparisons of pulp chamber temperature changes with light sources irradiated at 10 mm.

n Mean ± SD p
Halogen – Metallic brackets – 10 mm 10 0.84 ± 0.14c <0.05
LED – Metallic brackets – 10 mm 10 0.17 ± 0.13a ns
Powered LED – Metallic brackets – 10 mm 10 0.45 ± 0.08b <0.05
High powered LED – Metallic brackets – 10 mm 10 0.24 ± 0.06a ns
Halogen – Ceramic brackets – 10 mm 10 0.90 ± 0.21c <0.05
LED – Ceramic brackets – 10 mm 10 0.09 ± 0.09a ns
Powered LED – Ceramic brackets – 10 mm 10 0.49 ± 0.17b <0.05
High powered LED – Ceramic brackets – 10 mm 10 0.22 ± 0.07a ns
eISSN:
2207-7480
Język:
Angielski
Częstotliwość wydawania:
Volume Open
Dziedziny czasopisma:
Medicine, Basic Medical Science, other
Kanał RSS czasopisma