Platform switching in the treatment of Cleidocranial Dysplasia: a case report

Background Cleidocranial dysplasia is a very rare occurrence, its incidence being 1: 1,000,000.Case report This report describes the treatment of a 31-year-old woman with cleidocranial dysplasia treated with expanded platform implants. All mandibular and maxillary teeth were extracted and porcine collagenized bone was used to cover the bone defects in both arches. Six months later, four expanded platform implants were used to restore the mandibular arch, but one of them failed before the prosthesis was placed. In the maxillary arch a complete denture was relined and placed in the maxilla. The definitive mandibular restoration was delivered 3 months after surgery.Conclusion Since early diagnosis of cleidocranial dysplasia is essential for choosing the appropriate treatment approach, clinicians should be aware of its characteristic features

Mechanical, histological and histomorphometric evaluation of modified by femtosecond laser zirconia implants versus titanium implants. An experimental study in dogs at three months

Aim The present study was aimed at quantifying implant´s stability and elemental composition by Periotest® and evaluating bone to implant contact (BIC) and crestal bone loss of modified by femtosecond laser zirconia and titanium implants.Materials and methods Forty-eight implants were divided into 2 groups: titanium (control) and modified by femtosecond laser zirconia (test) and then inserted in 6 American Foxhound dogs. Primary stability and secondary stability were measured by Periotest, BIC was evaluated by histomorphometry at 1 and 3 months, elemental composition of the surrounding bone in both groups after 1 and 3 months was assessed.Results Differences between groups regarding primary stability and secondary stability were not significant (p>0.05). The Carbon ratio at zirconia (12.529%) was significantly lower (p0.05) regarding BIC for titanium vs modified zirconia were observed. Crestal bone loss at 3 months was significantly (p<0.05) lower (0.07 ±0.34 mm) in titanium group than in zirconia (1.25 ± 1.73 mm).Conclusion Surface treatment by using femtosecond laser equalizes osseointegration of zirconia implants