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Erschienen in: BMC Oral Health 1/2020

Open Access 01.12.2020 | Research article

“Clinical comparison of bond failure rate between two types of mandibular canine-canine bonded orthodontic retainers- a randomized clinical trial”

verfasst von: Nasreen Iqbal Nagani, Imtiaz Ahmed, Faiqa Tanveer, Hafiza Marium Khursheed, Waqas Ahmed Farooqui

Erschienen in: BMC Oral Health | Ausgabe 1/2020

Abstract

Background

Bonded retainers are widely used as they are esthetically pleasing, easily acceptable, provide greater stability, compliance free and causes no soft tissue irritation and speech problems. Though, fracture and bond failure are their shortcomings. Therefore, the objectives of this study were to evaluate the number of bond failures and type of failure pattern between two types of mandibular canine-canine bonded retainers.

Methods

Total 60 subjects were recruited initially and were assessed for eligibility, out of which 6 were excluded and 2 were lost to follow up. They were randomly divided into two groups. Fiber reinforced composite (FRC) retainers were inserted in group 1 subjects while group 2 subjects received multistranded stainless steel (MSW) retainers. The subjects were recalled after every 3 months over a period of 1 year. Bond failure rate and failure pattern based on adhesive remnant index were evaluated at each visit. The bond failure rate and failure pattern were compared between the two retainers by using Chi-square test.

Results

The bond failure rates were 42.94% for FRC retainer and 31.41% for MSW retainer. Hence, total number of bond failures in both retainers were 37.17%. The difference of bond failure between two groups was statistically significant (p = 0.012). Type “0” failure pattern was detected commonly with both types of retainers (p <  0.001).

Conclusion

Our findings indicate that multistranded stainless steel wire retainer is a superior option to be used for fixed lingual retention in mandibular arch as it exhibited lower bond failure as compared to fiber reinforced composite retainer. Adhesive failure is the most common type of bond failure observed with both types of fixed retainers.

Trial registration

ID NCT03881813 (https://​clinicaltrials.​gov/​); March 19, 2019, retrospective registration.
Hinweise

Publisher’s Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Abkürzungen
FRC
Fiber reinforced composite
MSW
Mutistranded stainless steel wire
SPSS
Statistical package for social sciences

Background

Retention is an integral phase after the completion of orthodontic treatment [1]. It is the obligatory stage that enables the dentition to adapt the newly attained position and to maintain the stability and alignment of the teeth which otherwise will revert back to their pretreatment position resulting in relapse. Post retention orthodontic treatment records reveal loss of stability and alignment specifically in the mandibular anterior region [2]. Therefore permanent retention is highly recommended to ensure the stability and to maintain the long term effects of the dentition achieved by the treatment. These consequences can be accomplished by a fixed lingual retainer inserted for an optimum time interval [3, 4].
Zachrisson was the first one who boosted the usage of multistranded stainless steel wire (MSW) as fixed lingual retainers instead of round SS wire [5]. Fixed lingual retainers are specifically inserted in cases of generalized spacing, midline diastemas or to maintain implant/ pontic spaces. However with the passage of time, these are preferred usually in all cases as they offer numerous benefits for instance they are esthetically pleasing, easily acceptable, provide greater stability, compliance free and causes no soft tissue irritation and speech problems [6]. Although, they are technique sensitive and time consuming. Fracture and bond failure are also reported [7, 8].
Bond failure may be of cohesive or adhesive type. Cohesive failure is the type of failure at wire adhesive interface which occurs due to inadequate composite resin whereas, adhesive failure which is between adhesive and enamel surface results from movement of wire during bonding or moisture contamination [8]. The failure rates ranging from 10.3 to 47.0% have been reported [9]. Various factors that determine the survival rate of retainers are site of placement, type of material used, total number of teeth bonded and type of composite resin used [10, 11].
Multistranded stainless steel wire (MSW) of varying diameter is frequently used as fixed lingual retainer [12]. More recently fiber reinforced composite (FRC) materials found their way into orthodontics [13]. These are based on fiber laminate technology which involve the use of closely adapted layers of reinforcement fibers made up of carbon, polyaramid, polyethylene and glass held in place by a thin resin bonding layer [1416]. They adhere to the surfaces of the teeth chemically [17] and diffuse the forces to the glass fibers hence reinforcing the resistance offered by the bonding agent [18]. They offer adequate strength due to the incorporation of glass fibers into the composite resin ultimately results in better durability [19, 20]. Their esthetic nature and biocompatibility are remarkable features [2, 21]. They are conformed easily along the lingual surfaces of teeth and are lighter in weight [22, 23]. Likewise their complete detachment occurs rarely and are fixed easily [6]. Nevertheless they allow restricted physiological tooth movement as they create a stiff splint which may lead to their high bond failure [9]. To the best of our knowledge few studies have been conducted on these latest materials which revealed that the selection of the best type of fixed lingual retainer still remains a subjective issue hence, their reliability is yet questionable [24, 25]. As, these studies, and their synthesis, cannot provide reliable evidence in this field, therefore this trial was conducted to fill this gap.
Therefore, the objectives of this study were to evaluate the number of bond failures and type of failure pattern based on adhesive remnant index between two types of mandibular canine-canine bonded retainers.

Methods

This trial was approved by the Institutional Review Board of Dow University of Health Sciences (Ref:IRB-941/DUHS/Approval/2017/162) and was registered under the protocol ID NCT03881813 (https://​clinicaltrials.​gov/​), according to the CONSORT statement of the updated guidelines for reporting randomized clinical trials.

Study design and settings

It was a parallel-group randomized clinical trial, multicenter study with a 1:1 allocation ratio, conducted at the department of Orthodontics, Dr. Ishrat Ul Ebad Khan Institute Of Oral Health Sciences (DIKIOHS) and Dow Dental College (DDC) in Dow University of Health Sciences (DUHS) for the period of 17 months.

Sample size calculation

The sample size of 56 subjects was calculated using PASS version 11, based on two sample proportion with 95% confidence of interval and 80% power of test, bond failure [26] in flexible spiral wire (17.73%) and fiber reinforced composite (11.25%) with estimated population size of 60 patients in 6 months. Keeping in view, the inclusion of dropout rate, total 60 subjects were recruited. (Fig. 1) Purposive sampling technique was followed.

Patients recruitment and follow-up

The subjects were randomly divided through computer generated software (Microsoft Excel) into two groups. Retainers were inserted by the principal investigator. Non extraction cases below the age of 45 with moderate crowding and normal facial pattern who agreed to visit after every 3 months for a follow-up of 1 year and were treated with MBT fixed appliance were included while subjects with congenitally missing anterior teeth and poor oral hygiene were excluded.
After selection of subjects debonding, deep scaling and curettage was performed for each individual. Prior to the bonding of fixed retainer, all composite remnants were removed and enamel surfaces were cleaned with tungsten carbide bur in slow speed hand piece. Two types of fixed lingual retainers were bonded in the mandibular arch from canine-canine to all the six anterior teeth by a single operator. Group 1 subjects received fiber reinforced composite retainers (INOD, U.P. Fiber Splint, 2 mm) while group 2 (control group) subjects received multistranded stainless steel wire retainers (All Star Orthodontics, 0.0175 in.).

Fiber reinforced composite (FRC) group

After isolation of mandibular anterior teeth, dental floss was used for canine-canine distance measurement. Adequate length of ribbon fiber was cut by scalpel blade. It was pretreated with adhesive primer (3 M ESPE). Lingual surfaces of anterior teeth were etched with 37% phosphoric acid gel (Meta Biomed) for 30 s, were washed adequately and air dried. Then adhesive primer (3 M ESPE) was applied with applicator brush. Eventually each tooth was light cured with a light emitting diode (Otholux; 3 M) for 15 s which was followed by the application of flowable composite resin (3 M ESPE). Then fiber ribbon was adapted to the lingual surfaces of six anterior teeth with plastic instrument, surplus composite was cleared and each tooth was light cured for 15 s. Strict oral hygiene instructions were conveyed to all the subjects. (Fig. 2a).

Multistranded stainless steel wire (MSW) group

In MSW group, same isolation and bonding protocols were followed. (Fig. 2b).

Primary outcome measure (failure rate) and secondary outcome measure (ARI)

After insertion of retainers, the patients were recalled after every 3 months for a period of 12 months. On each visit, bond failure rate and pattern of failure via adhesive remnant index (0, no retained resin on enamel surface; 1, < 50% retained resin on enamel surface; 2, > 50% retained resin on enamel surface and 3, all resin retained on enamel surface) were observed [27]. In case if detachment of retainer was noticed during the visit, the subject was allowed to approach immediately for repair and bond failure was recorded in the upcoming visit.

Statistical analysis

Total 60 subjects were recruited, out of which 6 were excluded. Out of 54 subjects, two dropped out during the study; hence data was analyzed on 52 subjects using Statistical Package for Social Sciences (SPSS) Version 21. Cross tabulation was designed to detect the type of failure pattern. The bond failure rate and failure pattern were compared between the two retainers by using Chi-square test with p-value < 0.05 as significant.

Results

Total 60 subjects were recruited, 6 were excluded and 2 were lost to follow up so data was analyzed on 52 subjects for 12 months. The mean age of subjects were 21.5 ± 3.6 with the range of 14–30 years. Out of total subjects, 8 (15.4%) were males while 44 (84.6%) were females. Out of 52 cases, 38 (73.1%) were class I malocclusion treated while 14 (26.9%) were class II treated cases. There were no significant differences in the baseline characteristics i.e. age, gender and type of malocclusion between the two groups. (Table 1).
Table 1
Comparison of baseline characteristics between two retainers
Baseline characteristics
FRC
MSW
p-value *
Age
 mean ± SD
20.88 ± 3.45
22.15 ± 3.68
0.206
Gender
 Male n(%)
4 (50.0)
4 (50.0)
1.000
 Female n(%)
22 (50.0)
22 (50.0)
 
Malocclusion
 Class I
21 (55.3)
17 (44.7)
0.211
 Class II
5 (35.7)
9 (64.3)
 
FRC Fiber reinforced composite, MSW Multistranded stainless steel wire
*p-values calculated using Independent t-test and Chi-square test
The bond failure rates were 42.94% for FRC group and 31.41% for MSW group. Hence, total number of bond failures in both groups were 37.17%. The difference of bond failure between two groups was statistically significant with p = 0.012. (Table 2).
Table 2
Comparison of bond failure between FRC and MSW retainers
Type of retainer
No. of subjects
No. of teeth bonded
Frequency of bond failure (%)
Significance
(P-value)*
FRC
26
156
67 (42.94%)
0.012
MSW
26
156
49 (31.41%)
Total
52
312
116 (37.17%)
FRC Fiber reinforced composite, MSW Multistranded stainless steel wire
*Significant at 0.05 (Chi-square test)
When failure pattern was compared between the two retainers (Table 3), the frequency of type “0” failure pattern was 45 (62.5%) in FRC group and 27 (37.5%) in MSW group with total frequency of 72 in both groups. The frequency of type “1” pattern in FRC group was 18 (85.7%) and 3 (14.3%) in MSW group. Total frequency in both retainers was observed to be 21. Similarly, frequency of type “2” pattern was 3 (20%) in FRC and 12 (80%) in MSW group. Total frequency was 15 in both groups. The frequency of type “3” failure pattern was 1 (12.5%) in FRC and 7 (87.5%) in MSW group. Total frequency in both groups was 8. The difference of failure pattern was statistically significant (p <  0.001).
Table 3
Comparison of failure patterns (ARI) between FRC and MSW groups
Failure pattern (ARI)
FRC
MSW
Total
Significance (P-value)*
0
45 (62.5%)
27 (37.5%)
72
< 0.001
1
18 (85.7%)
3 (14.3%)
21
2
3 (20%)
12 (80%)
15
3
1 (12.5%)
7 (87.5%)
8
Note: (calculated percentages are row percentages)
ARI adhesive remnant index, FRC Fiber reinforced composite, MSW Multistranded stainless steel wire
*Significant at 0.05 (Chi-square test)

Discussion

In this study the difference of bond failures between the two retainers were clinically and statistically significant (P < 0.05). The results of our study showed that there is greater and significant bond failure observed with FRC retainers as compared to MSW retainers over a follow-up of 1 year.
The results of our study are in accordance with the study conducted by Rose and Tacken [13, 28]. They reported that multistranded stainless steel retainers are superior to the fiber reinforced in terms of reliability and bond failure. Similarly in vitro study conducted by Foek et al. reported that stainless steel wire retainers showed significantly higher bond strength as compared to fiber reinforced retainers [19]. The possible reasons for these findings are increased rigidity and strain levels of FRC retainer as compared to MSW retainer which results in increased masticatory load and bond failure [29]. Furthermore, FRC due to increased diameter of 2 mm as compared to MSW, covers greater surface area of teeth resulting in increased bond failure. It has also been reported by Scribante et al. that increased bond failure in FRC occurs due to weak interface between fiber and organic matrix as a result of intraoral hydrolysis and degradation [16] whereas, braided surface of MSW shows increased mechanical retention leads to decreased failure rate [30]. Sfondrini et al. compared the clinical reliability and bond failure between fiber reinforced composite and spiral wire retainers in the mandibular anterior teeth over 12 months period [26]. The current study is also conducted on these fixed retainers on mandibular teeth for 12 months. The number and rate of bond failure and cause were evaluated for two types of retainers. Bond failure rate was higher for multistranded wire retainer as compared to fiber reinforced composite retainer but the results were insignificant.
The present study also evaluated the type of failure pattern based on adhesive remnant index. The results showed that all types of failure patterns were observed but type “0” was found frequently in both types of fixed retainers while type “3” pattern was rarely found. These finding are comparable with the findings of previous studies [31, 32] which also reported similar results. Possible causes of failure at this point is the contamination of enamel surface during bonding and poor moisture control [31]. Other causes are insufficient or over etching of enamel surface, inadequate drying and faulty bonding procedure [32]. Type “0” failure pattern indicates that there is no resin left on the tooth surface after bond failure occurred, which means adhesive bond failure (enamel-adhesive junction) was detected commonly. In these instances, enamel surface was clear. When type “1” pattern was detected, partial adhesive remnants were present on tooth surface as compared to retainer surface which indicates that < 50% adhesive is found on tooth surface. When type “2” failure pattern was detected, adhesive remnants on tooth surface were greater as compared to retainer surface which indicates that > 50% adhesive is left on tooth surface. Type “3” pattern was detected least commonly specially, in FRC group, when no remnants were present on retainer surface. It is cohesive bond failure (adhesive-retainer junction) which indicates that all adhesive is present on tooth surface.
The strength of this study includes, that this study is a randomized clinical trial and allocation of subjects through randomization minimizes the risk of selection bias. Although blinding was not possible for the interventions given as they were visible on the surfaces of the teeth, blinding was done for the outcome assessment which minimizes the observation and detection biases. Moreover, it is a multicenter study which involves the recruitment of subjects from different areas, thus sample of subjects is representative and the results are assumed to be more reliable and generalized. However, limitations of the study include difficulty in controlling certain factors that might be accountable for the detachment or breakage of the retainers such as biting on the hard food, object or brushing aggressively with a stiff brush and masticatory forces. Retainers were repaired as soon as the subject reported their breakage but at times, the subjects were incapable to make out the detachments or breakages during the visits and were detected and repaired by the clinician on the follow-up visits. Furthermore, number of broken retainers were not recorded in the same patients i.e. clustering effects were not evaluated.
It is recommended to evaluate other types of fiber reinforced composites such as nanofilled in future. Further studies to assess the effects of the fixed retainers on periodontal health status and arch width changes in the post retention phase should be considered.

Conclusion

Our findings indicate that multistranded stainless steel wire retainer is a superior option to be used for fixed lingual retention in mandibular arch as it exhibited lower bond failure as compared to fiber reinforced composite retainer. Different types of failure patterns have been observed but adhesive failure is the most common type of bond failure observed with both groups of fixed lingual retainers.

Acknowledgements

I would like to acknowledge Ms. Sidra Zaheer for facilitating me in statistics.
This clinical trial was approved by the Institutional Review Board of Dow University of Health Sciences (Ref:IRB-941/DUHS/Approval/2017/162) and was registered under the protocol ID NCT03881813 (https://​clinicaltrials.​gov/​) according to the CONSORT statement of the updated guidelines for reporting randomized clinical trials. Written consent was taken from all participants. For all subjects under age 16 years, written consents were obtained from parents/ guardians.
Not applicable.

Competing interests

The authors declare that they have no competing interests.
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Literatur
1.
Zurück zum Zitat Armstrong AW, Oliver DR, Araújo EA, Thiesen G, Kim KB. Comparing orthodontic relapse of mandibular anterior teeth with traditional bonded versus magnetic retainers after 2 years of retention. J World Fed Orthod. 2017;6(2):45–9.CrossRef Armstrong AW, Oliver DR, Araújo EA, Thiesen G, Kim KB. Comparing orthodontic relapse of mandibular anterior teeth with traditional bonded versus magnetic retainers after 2 years of retention. J World Fed Orthod. 2017;6(2):45–9.CrossRef
2.
Zurück zum Zitat Salehi P, Najafi HZ, Roeinpeikar SM. Comparison of survival time between two types of orthodontic fixed retainer: a prospective randomized clinical trial. Prog Orthod. 2013;14(1):25.CrossRef Salehi P, Najafi HZ, Roeinpeikar SM. Comparison of survival time between two types of orthodontic fixed retainer: a prospective randomized clinical trial. Prog Orthod. 2013;14(1):25.CrossRef
3.
Zurück zum Zitat Booth FA, Edelman JM, Proffit WR. Twenty-year follow-up of patients with permanently bonded mandibular canine-to-canine retainers. Am J Orthod Dentofac Orthop. 2008;133(1):70–6.CrossRef Booth FA, Edelman JM, Proffit WR. Twenty-year follow-up of patients with permanently bonded mandibular canine-to-canine retainers. Am J Orthod Dentofac Orthop. 2008;133(1):70–6.CrossRef
4.
Zurück zum Zitat Cerny R. The reliability of bonded lingual retainers. Aust Orthod J. 2007;23(1):24.PubMed Cerny R. The reliability of bonded lingual retainers. Aust Orthod J. 2007;23(1):24.PubMed
5.
Zurück zum Zitat Zachrisson BU. Clinical experience with direct-bonded orthodontic retainers. Am J Orthod. 1977;71(4):440–8.CrossRef Zachrisson BU. Clinical experience with direct-bonded orthodontic retainers. Am J Orthod. 1977;71(4):440–8.CrossRef
6.
Zurück zum Zitat Brauchli LM, Wiedmer C, Wichelhaus A. A light-focusing tool for bonding fiber-reinforced composite retainers. J Clin Orthod. 2006;40(6):359–60.PubMed Brauchli LM, Wiedmer C, Wichelhaus A. A light-focusing tool for bonding fiber-reinforced composite retainers. J Clin Orthod. 2006;40(6):359–60.PubMed
7.
Zurück zum Zitat Zachrisson B. The bonded lingual retainer and multiple spacing of anterior teeth. Swed Dent J Suppl. 1981;15:247–55. Zachrisson B. The bonded lingual retainer and multiple spacing of anterior teeth. Swed Dent J Suppl. 1981;15:247–55.
8.
Zurück zum Zitat Renkema A-M, Renkema A, Bronkhorst E, Katsaros C. Long-term effectiveness of canine-to-canine bonded flexible spiral wire lingual retainers. Am J Orthod Dentofac Orthop. 2011;139(5):614–21.CrossRef Renkema A-M, Renkema A, Bronkhorst E, Katsaros C. Long-term effectiveness of canine-to-canine bonded flexible spiral wire lingual retainers. Am J Orthod Dentofac Orthop. 2011;139(5):614–21.CrossRef
9.
Zurück zum Zitat Bearn DR. Bonded orthodontic retainers: a review. Am J Orthod Dentofac Orthop. 1995;108(2):207–13.CrossRef Bearn DR. Bonded orthodontic retainers: a review. Am J Orthod Dentofac Orthop. 1995;108(2):207–13.CrossRef
10.
Zurück zum Zitat Dahl E. Long-term experience with direct-bonded lingual retainers. J Clin Orthod. 1991;25:619–30.PubMed Dahl E. Long-term experience with direct-bonded lingual retainers. J Clin Orthod. 1991;25:619–30.PubMed
11.
Zurück zum Zitat Årtun J, Spadafora AT, Shapiro PA. A 3-year follow-up study of various types of orthodontic canine-to-canine retainers. Eur J Orthod. 1997;19(5):501–9.CrossRef Årtun J, Spadafora AT, Shapiro PA. A 3-year follow-up study of various types of orthodontic canine-to-canine retainers. Eur J Orthod. 1997;19(5):501–9.CrossRef
12.
Zurück zum Zitat Littlewood SJ, Millett DT, Doubleday B, Bearn DR, Worthington HV. Orthodontic retention: a systematic review. J Orthod. 2006;33(3):205–12.CrossRef Littlewood SJ, Millett DT, Doubleday B, Bearn DR, Worthington HV. Orthodontic retention: a systematic review. J Orthod. 2006;33(3):205–12.CrossRef
13.
Zurück zum Zitat Rose E, Frucht S, Jonas IE. Clinical comparison of a multistranded wire and a direct-bonded polyethylene ribbon -reinforced resin composite used for lingual retention. Quintessence Int. 2002;33(8):579–83.PubMed Rose E, Frucht S, Jonas IE. Clinical comparison of a multistranded wire and a direct-bonded polyethylene ribbon -reinforced resin composite used for lingual retention. Quintessence Int. 2002;33(8):579–83.PubMed
14.
Zurück zum Zitat Vallittu PK. Flexural properties of acrylic resin polymers reinforced with unidirectional and woven glass fibers. J Prosthet Dent. 1999;81(3):318–26.CrossRef Vallittu PK. Flexural properties of acrylic resin polymers reinforced with unidirectional and woven glass fibers. J Prosthet Dent. 1999;81(3):318–26.CrossRef
15.
Zurück zum Zitat Scribante A, Sfondrini MF. Orthodontic retainers. A clinical guide to fibre reinforced composites (FRCs) in dentistry. UK: Elsevier; 2017. p. 187–202. Scribante A, Sfondrini MF. Orthodontic retainers. A clinical guide to fibre reinforced composites (FRCs) in dentistry. UK: Elsevier; 2017. p. 187–202.
16.
Zurück zum Zitat Sfondrini MF, Gandini P, Tessera P, Vallittu PK, Lassila L, Scribante A. Bending properties of fiber-reinforced composites retainers bonded with spot-composite coverage. Biomed Res Int. 2017;10(4):330. Sfondrini MF, Gandini P, Tessera P, Vallittu PK, Lassila L, Scribante A. Bending properties of fiber-reinforced composites retainers bonded with spot-composite coverage. Biomed Res Int. 2017;10(4):330.
17.
Zurück zum Zitat Burstone CJ, Kuhlberg AJ. Fiber-reinforced composites in orthodontics. J Clin Orthod. 2000;34(5):271–9. Burstone CJ, Kuhlberg AJ. Fiber-reinforced composites in orthodontics. J Clin Orthod. 2000;34(5):271–9.
18.
Zurück zum Zitat Tayab T, Shetty A, Kayalvizhi G. The clinical applications of fiber reinforced composites in all specialties of dentistry an overview. Int J Compos Mater. 2015;5(1):18–24. Tayab T, Shetty A, Kayalvizhi G. The clinical applications of fiber reinforced composites in all specialties of dentistry an overview. Int J Compos Mater. 2015;5(1):18–24.
19.
Zurück zum Zitat Foek D, Ozcan M, Krebs E, Sandham A. Adhesive properties of bonded orthodontic retainers to enamel: stainless steel wire vs fiber-reinforced composites. J Adhes Dent. 2009;11(5):381–90.PubMed Foek D, Ozcan M, Krebs E, Sandham A. Adhesive properties of bonded orthodontic retainers to enamel: stainless steel wire vs fiber-reinforced composites. J Adhes Dent. 2009;11(5):381–90.PubMed
20.
Zurück zum Zitat Karaman AI, Kir N, Belli S. Four applications of reinforced polyethylene fiber material in orthodontic practice. Am J Orthod Dentofac Orthop. 2002;121(6):650–4.CrossRef Karaman AI, Kir N, Belli S. Four applications of reinforced polyethylene fiber material in orthodontic practice. Am J Orthod Dentofac Orthop. 2002;121(6):650–4.CrossRef
21.
Zurück zum Zitat Liu Y. Application of fiber-reinforced composite as fixed lingual retainer. Hua Xi Kou Qiang Yi Xue Za Zhi. 2010;28(3):290–3.PubMed Liu Y. Application of fiber-reinforced composite as fixed lingual retainer. Hua Xi Kou Qiang Yi Xue Za Zhi. 2010;28(3):290–3.PubMed
22.
Zurück zum Zitat Diamond M. Resin fiberglass bonded retainer. J Clin Orthod. 1987;21(3):182–3.PubMed Diamond M. Resin fiberglass bonded retainer. J Clin Orthod. 1987;21(3):182–3.PubMed
23.
Zurück zum Zitat Orchin JD. Permanent lingual bonded retainer. J Clin Orthod. 1990;24(4):229.PubMed Orchin JD. Permanent lingual bonded retainer. J Clin Orthod. 1990;24(4):229.PubMed
24.
Zurück zum Zitat Al-Moghrabi D, Pandis N, Fleming PS. The effects of fixed and removable orthodontic retainers: a systematic review. Prog Orthod. 2016;17(1):24.CrossRef Al-Moghrabi D, Pandis N, Fleming PS. The effects of fixed and removable orthodontic retainers: a systematic review. Prog Orthod. 2016;17(1):24.CrossRef
25.
Zurück zum Zitat Iliadi A, Kloukos D, Gkantidis N, Katsaros C, Pandis N. Failure of fixed orthodontic retainers: a systematic review. J Dent. 2015;43(8):876–96.CrossRef Iliadi A, Kloukos D, Gkantidis N, Katsaros C, Pandis N. Failure of fixed orthodontic retainers: a systematic review. J Dent. 2015;43(8):876–96.CrossRef
26.
Zurück zum Zitat Scribante A, Gandini P, Tessera P, Vallittu P, Lassila L, Sfondrini M. Spot-bonding and full-bonding techniques for fiber reinforced composite (FRC) and metallic retainers. Int J Mol Sci. 2017;18(10):2096.CrossRef Scribante A, Gandini P, Tessera P, Vallittu P, Lassila L, Sfondrini M. Spot-bonding and full-bonding techniques for fiber reinforced composite (FRC) and metallic retainers. Int J Mol Sci. 2017;18(10):2096.CrossRef
27.
Zurück zum Zitat Artun J, Bergland S. Clinical trials with crystal growth conditioning as an alternative to acid etch enamel pretreatment. Am J Orthod Dentofacial Orthop. 1984;85:333–40.CrossRef Artun J, Bergland S. Clinical trials with crystal growth conditioning as an alternative to acid etch enamel pretreatment. Am J Orthod Dentofacial Orthop. 1984;85:333–40.CrossRef
28.
Zurück zum Zitat Tacken MP, Cosyn J, De Wilde P, Aerts J, Govaerts E, Vannet BV. Glass fibre reinforced versus multistranded bonded orthodontic retainers: a 2 year prospective multi-centre study. Eur J Orthod. 2009;cjp100:37. Tacken MP, Cosyn J, De Wilde P, Aerts J, Govaerts E, Vannet BV. Glass fibre reinforced versus multistranded bonded orthodontic retainers: a 2 year prospective multi-centre study. Eur J Orthod. 2009;cjp100:37.
29.
Zurück zum Zitat Redhu R, Prasad S, Laxmikanth S, Ramachandra C. Fiber-reinforced composites as the 4th generation bonded retainers in orthodontics. Int J Rec Adv Multi Res. 2016;3(5):1498–501. Redhu R, Prasad S, Laxmikanth S, Ramachandra C. Fiber-reinforced composites as the 4th generation bonded retainers in orthodontics. Int J Rec Adv Multi Res. 2016;3(5):1498–501.
30.
Zurück zum Zitat Sfondrini MF, Fraticelli D, Castellazzi L, Scribante A, Gandini P. Clinical evaluation of bond failures and survival between mandibular canine-to-canine retainers made of flexible spiral wire and fiber-reinforced composite. J Clin Exp Dent. 2014;6(2):e145.CrossRef Sfondrini MF, Fraticelli D, Castellazzi L, Scribante A, Gandini P. Clinical evaluation of bond failures and survival between mandibular canine-to-canine retainers made of flexible spiral wire and fiber-reinforced composite. J Clin Exp Dent. 2014;6(2):e145.CrossRef
31.
Zurück zum Zitat Fleming PS, Eliades T, Katsaros C, Pandis N. Curing lights for orthodontic bonding: a systematic review and meta-analysis. Am J Orthod Dentofac Orthop. 2013;143(4):S92–S103.CrossRef Fleming PS, Eliades T, Katsaros C, Pandis N. Curing lights for orthodontic bonding: a systematic review and meta-analysis. Am J Orthod Dentofac Orthop. 2013;143(4):S92–S103.CrossRef
32.
Zurück zum Zitat Pandis N, Fleming PS, Kloukos D, Polychronopoulou A, Katsaros C, Eliades T. Survival of bonded lingual retainers with chemical or photo polymerization over a 2-year period: a single-center, randomized controlled clinical trial. Am J Orthod Dentofac Orthop. 2013;144(2):169–75.CrossRef Pandis N, Fleming PS, Kloukos D, Polychronopoulou A, Katsaros C, Eliades T. Survival of bonded lingual retainers with chemical or photo polymerization over a 2-year period: a single-center, randomized controlled clinical trial. Am J Orthod Dentofac Orthop. 2013;144(2):169–75.CrossRef
Metadaten
Titel
“Clinical comparison of bond failure rate between two types of mandibular canine-canine bonded orthodontic retainers- a randomized clinical trial”
verfasst von
Nasreen Iqbal Nagani
Imtiaz Ahmed
Faiqa Tanveer
Hafiza Marium Khursheed
Waqas Ahmed Farooqui
Publikationsdatum
01.12.2020
Verlag
BioMed Central
Erschienen in
BMC Oral Health / Ausgabe 1/2020
Elektronische ISSN: 1472-6831
DOI
https://doi.org/10.1186/s12903-020-01167-7

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