Shear bond strength of three different fixed retainers: Stainless steel wires versus fiber reinforced composite (An in Vitro study)
Background and Objectives: Long term preservation of lingual retainer after active orthodontic treatment is mandatory in oral cavity to prevent teeth relapse to its original place before treatment which is documented in orthodontics and considered as a success factor of lingual bonded retainers. Th...
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College Of Dentistry Hawler Medical University
2022-02-01
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| Series: | Erbil Dental Journal |
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| Online Access: | https://edj.hmu.edu.krd/index.php/journal/article/view/127 |
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| author | Anees Mahmood Mudhir |
| author_facet | Anees Mahmood Mudhir |
| author_sort | Anees Mahmood Mudhir |
| collection | DOAJ |
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Background and Objectives: Long term preservation of lingual retainer after active orthodontic treatment is mandatory in oral cavity to prevent teeth relapse to its original place before treatment which is documented in orthodontics and considered as a success factor of lingual bonded retainers. This in vitro study is conducted to evaluate and compare the bond strength (shear bond strength) of three different fixed lingual retainers using a specific retainer composite and fracture modes of different retainer’s wire/adhesive combination.
Methods: One‐hundred twenty extracted human upper premolar teeth (60 pairs) were divided into three groups(40 for each group) bonded with three different types of retainer wires (db Straight‐8strand flattened nickel free braided wire 0.028 x 0.008 inches UK, 3M 0.0175; multi‐stranded wire and Speed korean orthodontic fiber reinforced splint (2 mm x 200 mm ‐ FS‐2) which were bonded to the lingual surface of the teeth as fixed retainers by specific adhesives (Transbond LR, 3M). The specimens were debonded using a Universal Instron machine to measure shear bond strength. The site of failure was recorded for each specimen was calculated. Statistical analyses were provided using one‐way analysis of variance with inter‐group comparison using the least significant difference.
Results: There was a statistically high significant difference among all three retainers groups (p < 0.001); db Straight 8 braid flat soft wire debonding force was (130±29.6N), followed by Speed fiber reinforced splint group (107.5±18.9 N), whereas the minimum was observed 3M Unitek coxial multi strand wire group(76±27.6 N).The site of failure was predominantly at the wire composite interface except in FRC was in enamel/composite interface.
Conclusion: db straight‐8 wire delivered higher shear bond strength, followed by fiber reinforced splint retainer group, whereas 3M multi‐strand wire had the least shear bond strength.
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| format | Article |
| id | doaj-art-ed73b0c0b50d403eb162fb272a3ca7fb |
| institution | Kabale University |
| issn | 2523-6172 2616-4795 |
| language | English |
| publishDate | 2022-02-01 |
| publisher | College Of Dentistry Hawler Medical University |
| record_format | Article |
| series | Erbil Dental Journal |
| spelling | doaj-art-ed73b0c0b50d403eb162fb272a3ca7fb2025-02-10T20:48:36ZengCollege Of Dentistry Hawler Medical UniversityErbil Dental Journal2523-61722616-47952022-02-0142Shear bond strength of three different fixed retainers: Stainless steel wires versus fiber reinforced composite (An in Vitro study)Anees Mahmood Mudhir0Department of Pedodontics, Orthodontics and Preventive Dentistry, College of Dentistry, University of Duhok, Iraq. Background and Objectives: Long term preservation of lingual retainer after active orthodontic treatment is mandatory in oral cavity to prevent teeth relapse to its original place before treatment which is documented in orthodontics and considered as a success factor of lingual bonded retainers. This in vitro study is conducted to evaluate and compare the bond strength (shear bond strength) of three different fixed lingual retainers using a specific retainer composite and fracture modes of different retainer’s wire/adhesive combination. Methods: One‐hundred twenty extracted human upper premolar teeth (60 pairs) were divided into three groups(40 for each group) bonded with three different types of retainer wires (db Straight‐8strand flattened nickel free braided wire 0.028 x 0.008 inches UK, 3M 0.0175; multi‐stranded wire and Speed korean orthodontic fiber reinforced splint (2 mm x 200 mm ‐ FS‐2) which were bonded to the lingual surface of the teeth as fixed retainers by specific adhesives (Transbond LR, 3M). The specimens were debonded using a Universal Instron machine to measure shear bond strength. The site of failure was recorded for each specimen was calculated. Statistical analyses were provided using one‐way analysis of variance with inter‐group comparison using the least significant difference. Results: There was a statistically high significant difference among all three retainers groups (p < 0.001); db Straight 8 braid flat soft wire debonding force was (130±29.6N), followed by Speed fiber reinforced splint group (107.5±18.9 N), whereas the minimum was observed 3M Unitek coxial multi strand wire group(76±27.6 N).The site of failure was predominantly at the wire composite interface except in FRC was in enamel/composite interface. Conclusion: db straight‐8 wire delivered higher shear bond strength, followed by fiber reinforced splint retainer group, whereas 3M multi‐strand wire had the least shear bond strength. https://edj.hmu.edu.krd/index.php/journal/article/view/127Shear bond strengthLingual retainer wireFiber reinforced compositeAdhesive |
| spellingShingle | Anees Mahmood Mudhir Shear bond strength of three different fixed retainers: Stainless steel wires versus fiber reinforced composite (An in Vitro study) Erbil Dental Journal Shear bond strength Lingual retainer wire Fiber reinforced composite Adhesive |
| title | Shear bond strength of three different fixed retainers: Stainless steel wires versus fiber reinforced composite (An in Vitro study) |
| title_full | Shear bond strength of three different fixed retainers: Stainless steel wires versus fiber reinforced composite (An in Vitro study) |
| title_fullStr | Shear bond strength of three different fixed retainers: Stainless steel wires versus fiber reinforced composite (An in Vitro study) |
| title_full_unstemmed | Shear bond strength of three different fixed retainers: Stainless steel wires versus fiber reinforced composite (An in Vitro study) |
| title_short | Shear bond strength of three different fixed retainers: Stainless steel wires versus fiber reinforced composite (An in Vitro study) |
| title_sort | shear bond strength of three different fixed retainers stainless steel wires versus fiber reinforced composite an in vitro study |
| topic | Shear bond strength Lingual retainer wire Fiber reinforced composite Adhesive |
| url | https://edj.hmu.edu.krd/index.php/journal/article/view/127 |
| work_keys_str_mv | AT aneesmahmoodmudhir shearbondstrengthofthreedifferentfixedretainersstainlesssteelwiresversusfiberreinforcedcompositeaninvitrostudy |