A randomized controlled trial of ball and socket vs O-ring attachments for single implant-retained mandibular overdentures. A study of crestal bone loss and patient satisfaction
Purpose: This short term randomized controlled trial aimed to evaluate crestal bone loss and patient satisfaction of ball and socket and O-ring attachments used to retain single implant-retained mandibular overdenture after one year. Materials and methods: Twelve completely edentulous patients received single implant in the midline of the mandible. Three months later, the patients were randomly assigned into two groups; Group 1 (control group); six patients their mandibular dentures were connected to the implant using ball and socket attachment. Group 2 (test group); included six patients their mandibular dentures were connected to the implant using O/ring attachment. The peri-implant crestal bone loss was evaluated at mesial, distal, buccal and lingual aspects of each implant using cone beam computerized tomography made at baseline, 6 and 12 months later. Patient satisfaction was evaluated using questionnaire of visual Analogue Scales (VAS) six months after loading. Results: The implant survival rate was 100% in both groups. Ball and socket attachment recorded significant higher crestal bone loss than O-ring attachment after 6 months (p=.031) and 12 months (p=.021). Ball and socket attachment recorded significant higher patient satisfaction than O/ring attachment. Conclusion: O/ring attachment is recommended than ball and socket attachment for single implant mandibular overdentures in term of peri-implant bone preservation. However, ball and socket attachment was associated with significant higher patient satisfaction than O/ring attachment.
El talawy, D. (2021). A randomized controlled trial of ball and socket vs O-ring attachments for single implant-retained mandibular overdentures. A study of crestal bone loss and patient satisfaction. Egyptian Dental Journal, 67(4), 3629-3641. doi: 10.21608/edj.2021.91202.1758
MLA
Dina El talawy. "A randomized controlled trial of ball and socket vs O-ring attachments for single implant-retained mandibular overdentures. A study of crestal bone loss and patient satisfaction". Egyptian Dental Journal, 67, 4, 2021, 3629-3641. doi: 10.21608/edj.2021.91202.1758
HARVARD
El talawy, D. (2021). 'A randomized controlled trial of ball and socket vs O-ring attachments for single implant-retained mandibular overdentures. A study of crestal bone loss and patient satisfaction', Egyptian Dental Journal, 67(4), pp. 3629-3641. doi: 10.21608/edj.2021.91202.1758
VANCOUVER
El talawy, D. A randomized controlled trial of ball and socket vs O-ring attachments for single implant-retained mandibular overdentures. A study of crestal bone loss and patient satisfaction. Egyptian Dental Journal, 2021; 67(4): 3629-3641. doi: 10.21608/edj.2021.91202.1758
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