Effect of Microimplant Neck Design with and without Microthread on Pullout Strength and Destruction Volume
The microthread neck concept has been applied to dental implants. This study investigated the pullout strength and destruction volume of orthodontic microimplants with and without the microthread neck design. Fifteen microimplants (diameter: 1.5 × 10 mm) of three types (Types A and B: without microi...
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2021-10-01
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| Online Access: | https://www.mdpi.com/1996-1944/14/20/5991 |
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| author | Yu-Chuan Tseng Han-Sheng Chen Szu-Yu Hsiao Kun-Jung Hsu Chun-Ming Chen |
| author_facet | Yu-Chuan Tseng Han-Sheng Chen Szu-Yu Hsiao Kun-Jung Hsu Chun-Ming Chen |
| author_sort | Yu-Chuan Tseng |
| collection | DOAJ |
| description | The microthread neck concept has been applied to dental implants. This study investigated the pullout strength and destruction volume of orthodontic microimplants with and without the microthread neck design. Fifteen microimplants (diameter: 1.5 × 10 mm) of three types (Types A and B: without microimplant neck; Type C: with microimplant neck) were tested. The insertion torque (IT), Periotest value (PTV), horizontal pullout strength (HPS), and horizontal destruction volume (HDV) of each type were measured. Kruskal–Wallis H test and Dunn’s post-hoc comparison test were performed to compare the measured values of the three types of microimplants. The correlations of the measured values were used to perform the Spearman’s correlation coefficient analysis. The ITs of Types B (8.8 Ncm) and C (8.9 Ncm) were significantly higher than those of Type A (5.2 Ncm). Type B yielded the lowest PTV (4.1), and no statistical differences in PTV were observed among the three types. Type A had a significantly lower HPS (158.8 Ncm) than Types B (226.9 Ncm) and C (212.8 Ncm). The three types did not exhibit any significant differences in the HDV. The results of the Spearman’s correlation coefficient test revealed that HDV (ρ = 0.710) and IT (ρ = 0.813) were strongly correlated with HPS, whereas for PTV and HPS, it was not. HPS was strongly and significantly correlated with HDV. The orthodontic microimplant with a microimplant neck design did not perform better than that without a microthread in the mechanical strength test. |
| first_indexed | 2024-03-10T06:26:25Z |
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| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T06:26:25Z |
| publishDate | 2021-10-01 |
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| series | Materials |
| spelling | doaj.art-e025010090f542e4b503fb32eed302fc2023-11-22T18:57:13ZengMDPI AGMaterials1996-19442021-10-011420599110.3390/ma14205991Effect of Microimplant Neck Design with and without Microthread on Pullout Strength and Destruction VolumeYu-Chuan Tseng0Han-Sheng Chen1Szu-Yu Hsiao2Kun-Jung Hsu3Chun-Ming Chen4School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung 807, TaiwanDepartment of Dentistry, Kaohsiung Municipal Siaogang Hospital, Kaohsiung 812, TaiwanSchool of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung 807, TaiwanSchool of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung 807, TaiwanSchool of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung 807, TaiwanThe microthread neck concept has been applied to dental implants. This study investigated the pullout strength and destruction volume of orthodontic microimplants with and without the microthread neck design. Fifteen microimplants (diameter: 1.5 × 10 mm) of three types (Types A and B: without microimplant neck; Type C: with microimplant neck) were tested. The insertion torque (IT), Periotest value (PTV), horizontal pullout strength (HPS), and horizontal destruction volume (HDV) of each type were measured. Kruskal–Wallis H test and Dunn’s post-hoc comparison test were performed to compare the measured values of the three types of microimplants. The correlations of the measured values were used to perform the Spearman’s correlation coefficient analysis. The ITs of Types B (8.8 Ncm) and C (8.9 Ncm) were significantly higher than those of Type A (5.2 Ncm). Type B yielded the lowest PTV (4.1), and no statistical differences in PTV were observed among the three types. Type A had a significantly lower HPS (158.8 Ncm) than Types B (226.9 Ncm) and C (212.8 Ncm). The three types did not exhibit any significant differences in the HDV. The results of the Spearman’s correlation coefficient test revealed that HDV (ρ = 0.710) and IT (ρ = 0.813) were strongly correlated with HPS, whereas for PTV and HPS, it was not. HPS was strongly and significantly correlated with HDV. The orthodontic microimplant with a microimplant neck design did not perform better than that without a microthread in the mechanical strength test.https://www.mdpi.com/1996-1944/14/20/5991microthread neckpullout strengthdestruction volumemicroimplant |
| spellingShingle | Yu-Chuan Tseng Han-Sheng Chen Szu-Yu Hsiao Kun-Jung Hsu Chun-Ming Chen Effect of Microimplant Neck Design with and without Microthread on Pullout Strength and Destruction Volume Materials microthread neck pullout strength destruction volume microimplant |
| title | Effect of Microimplant Neck Design with and without Microthread on Pullout Strength and Destruction Volume |
| title_full | Effect of Microimplant Neck Design with and without Microthread on Pullout Strength and Destruction Volume |
| title_fullStr | Effect of Microimplant Neck Design with and without Microthread on Pullout Strength and Destruction Volume |
| title_full_unstemmed | Effect of Microimplant Neck Design with and without Microthread on Pullout Strength and Destruction Volume |
| title_short | Effect of Microimplant Neck Design with and without Microthread on Pullout Strength and Destruction Volume |
| title_sort | effect of microimplant neck design with and without microthread on pullout strength and destruction volume |
| topic | microthread neck pullout strength destruction volume microimplant |
| url | https://www.mdpi.com/1996-1944/14/20/5991 |
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