Pulp chamber temperature rise in light-cure bonding of brackets with and without primer, in intact versus restored teeth
ABSTRACT Objective: To evaluate the pulp chamber temperature rise (PCTR) in light-cure bonding of brackets with and without primer, in intact and restored mandibular central incisors (M1), maxillary first premolars (Mx4), and mandibular third molars (M8). Material and Methods: Ninety human teeth w...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Dental Press Editora
2023-06-01
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| Series: | Dental Press Journal of Orthodontics |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512023000200305&lng=en&tlng=en |
| _version_ | 1827932281425100800 |
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| author | Gabriela Cenci SCHMITZ Fernanda de Souza HENKIN Mauricio MEZOMO Mariana MARQUEZAN Gabriela BONACINA Maximiliano Schünke GOMES Eduardo Martinelli Santayana de LIMA |
| author_facet | Gabriela Cenci SCHMITZ Fernanda de Souza HENKIN Mauricio MEZOMO Mariana MARQUEZAN Gabriela BONACINA Maximiliano Schünke GOMES Eduardo Martinelli Santayana de LIMA |
| author_sort | Gabriela Cenci SCHMITZ |
| collection | DOAJ |
| description | ABSTRACT Objective: To evaluate the pulp chamber temperature rise (PCTR) in light-cure bonding of brackets with and without primer, in intact and restored mandibular central incisors (M1), maxillary first premolars (Mx4), and mandibular third molars (M8). Material and Methods: Ninety human teeth were included: M1 (n=30), Mx4 (n=30), and M8 (n=30). Light-cure bonding of brackets was performed in intact (n=60) and restored (n=30) teeth, with primer (n=60) or without (n=30) primer. PCTR was defined as the difference between initial (T0) and peak temperatures (T1), recorded with a thermocouple during light-cure bonding. Differences on PCTR between bonding techniques (primer vs. no primer), teeth types (M1 vs. Mx4 vs. M8), and teeth condition (intact vs. restored) were estimated by ANCOVA, with α=5%. Results: PCTR was significantly higher with the use of primer (2.05 ± 0.08oC) than without primer (1.65 ± 0.14oC) (p=0.02), and in M1 (2.23 ± 0.22oC) compared to Mx4 (1.56 ± 0.14oC) (p<0.01). There was no difference in the PCTR in M8 (1.77 ± 0.28oC) compared to M1 or Mx4 (p>0.05), and no difference between intact (1.78 ± 0.14oC) and restored (1.92 ± 0.08oC) teeth (p=0.38). There was no influence of dentin enamel thickness in the PCTR (p=0.19). Conclusion: PCTR was higher in light-cure bonding of brackets with primer, especially in M1. Light-cure bonding seems less invasive without primer. |
| first_indexed | 2024-03-13T07:07:23Z |
| format | Article |
| id | doaj.art-352c0f7983e448a99fcaa7f678eb61ee |
| institution | Directory Open Access Journal |
| issn | 2177-6709 |
| language | English |
| last_indexed | 2024-03-13T07:07:23Z |
| publishDate | 2023-06-01 |
| publisher | Dental Press Editora |
| record_format | Article |
| series | Dental Press Journal of Orthodontics |
| spelling | doaj.art-352c0f7983e448a99fcaa7f678eb61ee2023-06-06T07:34:29ZengDental Press EditoraDental Press Journal of Orthodontics2177-67092023-06-0128210.1590/2177-6709.28.2.e2321167.oarPulp chamber temperature rise in light-cure bonding of brackets with and without primer, in intact versus restored teethGabriela Cenci SCHMITZhttps://orcid.org/0009-0003-0871-1755Fernanda de Souza HENKINhttps://orcid.org/0000-0001-5583-7658Mauricio MEZOMOhttps://orcid.org/0000-0002-1926-4810Mariana MARQUEZANhttps://orcid.org/0000-0001-6078-5194Gabriela BONACINAhttps://orcid.org/0000-0001-7459-724XMaximiliano Schünke GOMEShttps://orcid.org/0000-0002-0394-5400Eduardo Martinelli Santayana de LIMAhttps://orcid.org/0000-0001-7612-2846ABSTRACT Objective: To evaluate the pulp chamber temperature rise (PCTR) in light-cure bonding of brackets with and without primer, in intact and restored mandibular central incisors (M1), maxillary first premolars (Mx4), and mandibular third molars (M8). Material and Methods: Ninety human teeth were included: M1 (n=30), Mx4 (n=30), and M8 (n=30). Light-cure bonding of brackets was performed in intact (n=60) and restored (n=30) teeth, with primer (n=60) or without (n=30) primer. PCTR was defined as the difference between initial (T0) and peak temperatures (T1), recorded with a thermocouple during light-cure bonding. Differences on PCTR between bonding techniques (primer vs. no primer), teeth types (M1 vs. Mx4 vs. M8), and teeth condition (intact vs. restored) were estimated by ANCOVA, with α=5%. Results: PCTR was significantly higher with the use of primer (2.05 ± 0.08oC) than without primer (1.65 ± 0.14oC) (p=0.02), and in M1 (2.23 ± 0.22oC) compared to Mx4 (1.56 ± 0.14oC) (p<0.01). There was no difference in the PCTR in M8 (1.77 ± 0.28oC) compared to M1 or Mx4 (p>0.05), and no difference between intact (1.78 ± 0.14oC) and restored (1.92 ± 0.08oC) teeth (p=0.38). There was no influence of dentin enamel thickness in the PCTR (p=0.19). Conclusion: PCTR was higher in light-cure bonding of brackets with primer, especially in M1. Light-cure bonding seems less invasive without primer.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512023000200305&lng=en&tlng=enDental cementsOrthodontic bracketsDental pulpOrthodontics |
| spellingShingle | Gabriela Cenci SCHMITZ Fernanda de Souza HENKIN Mauricio MEZOMO Mariana MARQUEZAN Gabriela BONACINA Maximiliano Schünke GOMES Eduardo Martinelli Santayana de LIMA Pulp chamber temperature rise in light-cure bonding of brackets with and without primer, in intact versus restored teeth Dental Press Journal of Orthodontics Dental cements Orthodontic brackets Dental pulp Orthodontics |
| title | Pulp chamber temperature rise in light-cure bonding of brackets with and without primer, in intact versus restored teeth |
| title_full | Pulp chamber temperature rise in light-cure bonding of brackets with and without primer, in intact versus restored teeth |
| title_fullStr | Pulp chamber temperature rise in light-cure bonding of brackets with and without primer, in intact versus restored teeth |
| title_full_unstemmed | Pulp chamber temperature rise in light-cure bonding of brackets with and without primer, in intact versus restored teeth |
| title_short | Pulp chamber temperature rise in light-cure bonding of brackets with and without primer, in intact versus restored teeth |
| title_sort | pulp chamber temperature rise in light cure bonding of brackets with and without primer in intact versus restored teeth |
| topic | Dental cements Orthodontic brackets Dental pulp Orthodontics |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2176-94512023000200305&lng=en&tlng=en |
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