The invention relates to a tooth, a tooth holder and a tooth/tooth holder assembly, in which reciprocal coupling means are disposed between the tooth and the tooth holder.

Each tooth (291) has a first tooth surface and a second tooth surface on opposite sides of the tooth (291), which can contact tooth surfaces of the sun gear (30) and the ring gear (40).

The tooth (4) comprises a tooth web (11), a tooth base (10) and a tooth head (12) at a distance from the tooth base (10).

In particular embodiments, the tooth is a natural tooth, especially a human tooth.

The drive tine has a first end attached to the pickup tine and is transverse to the drive tine.

In order to place the band in the correct position with respect to an adjacent tooth, the band is pressed against a subsequent tooth using the device.

In alternative embodiments, the tooth is an artificial tooth.

The prosthetic tooth can attach to an existing tooth by creating a receiving dimple in the existing tooth.

The main sealing (60) tooth can include a twin tooth (90) having a parent tooth (92) and one or more sealing teeth (94, 96) extending therefrom.

Each tine is spaced apart from an adjacent tine by a tine-to-tine distance that is less than the wavelength of the secondary ultrasonic signals circumferentially propagating within the pipe wall.

The grouser includes a rubber grouser bar which is bonded to a mounting plate to facilitate replacement of the grouser after the rubber grouser bar is worn out by use.

The head of center tooth of every switching tooth is round.

A clamping wedge (2) for a web locking retractor comprising a clamping surface (1) having a plurality of individual teeth (3), wherein each individual tooth has its apex perpendicularly above the geometric centre of the base of the tooth.

A respective articulating tool for each tooth is provided with a post that is embedded into the tooth.

A jig (5) fits over the tooth and positions the microdot adjacent the tooth.