Management of misangulated implants for a maxillary overdenture with spherical abutments: A clinical report

Primär- versus sekundärverblockte Versorgung zahnloser Patienten

“…Einzelattachments zur sekundären Verblockung sind klar kostengünstiger und einfacher in der Verarbeitung und haben einen geringeren vertikalen Platzbedarf [18]. Magnete scheinen sich für die intraorale Anwendung aufgrund von Korrosionsvorgängen sowie frühzeitiger Entkopplung der Prothese nicht durchgesetzt zu haben.…”

“…Kugelkopfanker und Locatoren ermöglichen eine dosierte Einstellung der Retentionskraft, unterliegen aber vor allem bei nicht paralleler Orientierung hohem Verschleiß. Individuell gefertigte Teleskope [19] erlauben die einfache Korrektur der Einschubrichtung [18], haben aber hohe Fertigungskosten und bedürfen aufgrund der benötigten Bauhöhe einer exakten Implantatpositionierung. Zudem bedarf die Einstellung der Retentionskraft wiederholter Korrekturen [20].…”

Comparing two different angulated abutment designs on marginal bone loss around divergent two implants retaining mandibular overdentures: A radiographic prospective study.

“…Custom-made cast ball or cast-to Locator attachments were also used to ensure parallelism between the two attachments in a cost-effective manner 2,3,15 . Recently, pre-manufactured angled abutments were available in the implant market for correction of inclined implants retaining overdentures that may be less technique-sensitive, and easier to clean.The authors have directed their attention strategies for improving the prosthetic outcome with concern to predictable retention and avoiding premature wear of the retentive matrices 3,7,14,10 .…”

Long‐term survival analysis of standard‐length and short implants with multifunctional abutments

“…The use of angled abutments may increase the stress transferred to supporting implants and adjacent bone, with direct effects on the prosthesis . In addition, only moderate malpositioning can be treated using these alternatives, and few reports, most of which are case reports and case series, have described the performance of such angled components …”

“…The use of a special abutment with non‐parallel implants to obtain a favourable path of insertion and removal may be promising . However, spherical components available on the market are designed usually for overdentures and does not allow for prosthesis fixation with screws.…”