Clinical Experience On Respectively Choosing Different Type Of Attachment Repair According To The Isolated And Non-isolated Abutments With Different Conditions

Objective: Investigating the design of attachment dentures according to thedifferent conditions of isolated and non-isolated abutments.Material and Methods: The research has chosen24clinical cases of dentureretained by attachment including the repair of isolated abutments and non-isolated ones,totally using49abutments. According to the condition of the periodontal tissue andwhether forming a align-abutment,49abutments was divided into3groups. Group A:14isolated abutments, no mobility existing, periodontal tissue in good condition,alveolar bone resorption≤a third of the root length, repairing through stud-type andkey-way attachment; group B:10isolated abutments, mobility≤Ⅰ°, no engorgement orinflammation in the gum, alveolar bone resorption≤half the root length, repairingthrough stud-type and magnetic attachment; group C:25non-isolated abutments,mobility≤Ⅰ°, alveolar bone resorption≤half the root length, repairing throughstud-type and stud-snap attachment after the forming of align-abutment. Those24casesare counterchecked periodically in order to compare the patients’ subjective evaluationand the clinical examination results.Results: After1month to1year’s periodical countercheck, group A: except2isolated abutment with stud attachment showed mobility and alveolar bone resorption,other12isolated abutments showed no obvious degeneration compared to the conditionbefore repair; group B:5out the6isolated abutments which were applied studattachment degenerated compared to the condition before repair, while the4isolatedabutments which were applied magnetic attachment did not degenerate at all, not onlythat,2of them were got better; group C: after the non-isolated abutments developed intoalign-abutments,23out of the25abutments got improvement and the other2showed no marked difference.Conclusion: For the clinical design of attachment dentures for isolated andnon-isolated abutment, one should take the oral cavity’s integrated conditions intoaccount, form as many align-abutments, and choose different types of attachmentaccording to the retention that the denture needs.