Set of dental components

摘要

According to an aspect of the invention, in a set of male dental components, such as abutment screws, each male dental component has a threaded portion with different core diameter. Each male dental component is to be connected to a mating female dental component, such as an abutment. The smaller core diameter a threaded portion has, the higher friction is provided when the male dental component is finally tightened to its mating female dental component, even though the same insertion torque is applied to all male dental components.

主权项

1. A set of dental components, comprising
a subset of male dental components comprising
a first male dental component and a second male dental component, a subset of female dental components comprising
a first female dental component and a second female dental component, each having an engagement portion that includes a generally cylindrical enveloping surface having a plurality of radial projections spaced therearound, and a subset of female dental fixtures adapted to be inserted into the jawbone comprising a first female dental fixture and a second female dental fixture, wherein said first male dental component is connected to said first female dental component, the first male dental component comprising a head, a threaded portion having a core provided with an external thread and a first non-threaded seat-mating portion extending between the head and the threaded portion, the first non-threaded seat-mating portion defining a first contact surface area and forming a non-zero angle α that is less than 90° in relation to the longitudinal central axis of the first male dental component, wherein said second male dental component is connected to said second female dental component, the second male dental component comprising a head, a threaded portion having a core provided with an external thread and a second non-threaded seat-mating portion extending between the head and the threaded portion, the second non-threaded seat-mating portion defining a second contact surface area and forming a non-zero angle β that is less than 90° in relation to the longitudinal central axis of the second male dental component, wherein the first contact surface area is larger than the second surface contact area and the non-zero angle α is less than the non-zero angle β, wherein the core of the threaded portion of said first male dental component has a smaller diameter than the core of the threaded portion of said second male dental component, and wherein, when the male dental components are finally tightened with the same torque to their respective female dental components, the friction between said first male dental component and said first female dental component is higher than the friction between said second male dental component and said second female dental component, wherein the core of the threaded portion of said first male dental component is received by a threaded recess disposed apically of an intermediate wall section having a plurality of radially extending recesses of the first female dental fixture and the core of the threaded portion of said second male dental component is received by a threaded recess disposed apically of an intermediate wall section having a plurality of radially extending recesses of the second female dental fixture, wherein each non-threaded seat-mating portion is located coronally of said threaded portion and each female dental component comprises a seat for receiving said non-threaded seat-mating portion of the respective male dental component, wherein said non-threaded seat-mating portion and said seat each forms the non-zero angles α and β in relation to the longitudinal central axis of the respective dental component, and wherein, when the male dental components are finally tightened with the same torque to their respective female dental components, the friction between the first non-threaded seat-mating portion of the first male dental component and the seat of the first female dental component is higher than the friction between the second non-threaded seat-mating portion of the second male dental component and the seat of the second female dental component, wherein the coefficient of friction between said contact surface of the first male dental component and its mating first female dental component is higher than the coefficient of friction between said contact surface of the second male dental component and its mating second female dental component, wherein said female dental components are abutments adapted to be connected to the respective dental fixture insertable into a jawbone, wherein said male dental components are abutment screws for fastening the respective mating abutment to the respective dental fixture.