An accessory device and an immobilization system including the device are provided for positioning at least a portion of a patient's body relative to an immobilization device including a low temperature thermoplastic sheet. The accessory device may include a patient fixation portion and a lock portion. The patient fixation portion is attached to or inserted in the patient during use. The lock portion may extend distally from the patient fixation portion generally along a lock portion axis. The lock portion includes a shape, surface feature, or configuration, such that the low temperature thermoplastic sheet may be conformed to the outer surface of the lock portion of the accessory device, such that unintended separation of the accessory device from the low temperature thermoplastic sheet is prevented. Methods of forming the accessory device and immobilization system are also provided.

An accessory device and an immobilization system including the device are provided for positioning at least a portion of a patient's body relative to an immobilization device including a low temperature thermoplastic sheet. The accessory device may include a patient fixation portion and a lock portion. The patient fixation portion is attached to or inserted in the patient during use. The lock portion may extend distally from the patient fixation portion generally along a lock portion axis. The lock portion includes a shape, surface feature, or configuration, such that the low temperature thermoplastic sheet may be conformed to the outer surface of the lock portion of the accessory device, such that unintended separation of the accessory device from the low temperature thermoplastic sheet is prevented. Methods of forming the accessory device and immobilization system are also provided.

The present disclosure provides methods, computing device readable medium, devices, and systems that utilize a cheek retractor and/or a mobile device holder for case assessment and/or dental treatments. One cheek retractor includes a first and a second lip holder, both including imaging markers of a predetermined size to determine a scale of teeth of a user, where each imaging marker is located a predefined distance from the remaining imaging markers, and where the lip holder is to hold a cheek away from a mouth of a user to expose teeth of the user. A mobile device holder can include elements to receive a mobile device to capture images of the patient's teeth.

The present disclosure provides methods, computing device readable medium, devices, and systems that utilize a cheek retractor and/or a mobile device holder for case assessment and/or dental treatments. One cheek retractor includes a first and a second lip holder, both including imaging markers of a predetermined size to determine a scale of teeth of a user, where each imaging marker is located a predefined distance from the remaining imaging markers, and where the lip holder is to hold a cheek away from a mouth of a user to expose teeth of the user. A mobile device holder can include elements to receive a mobile device to capture images of the patient's teeth.

An accessory device and an immobilization system including the device are provided for positioning at least a portion of a patient's body relative to an immobilization device including a low temperature thermoplastic sheet. The accessory device may include a patient fixation portion and a lock portion. The patient fixation portion is attached to or inserted in the patient during use. The lock portion may extend distally from the patient fixation portion generally along a lock portion axis. The lock portion includes a shape, surface feature, or configuration, such that the low temperature thermoplastic sheet may be conformed to the outer surface of the lock portion of the accessory device, such that unintended separation of the accessory device from the low temperature thermoplastic sheet is prevented. Methods of forming the accessory device and immobilization system are also provided.

An accessory device and an immobilization system including the device are provided for positioning at least a portion of a patient's body relative to an immobilization device including a low temperature thermoplastic sheet. The accessory device may include a patient fixation portion and a lock portion. The patient fixation portion is attached to or inserted in the patient during use. The lock portion may extend distally from the patient fixation portion generally along a lock portion axis. The lock portion includes a shape, surface feature, or configuration, such that the low temperature thermoplastic sheet may be conformed to the outer surface of the lock portion of the accessory device, such that unintended separation of the accessory device from the low temperature thermoplastic sheet is prevented. Methods of forming the accessory device and immobilization system are also provided.

A lip/cheek retainer particularly suitable for use with an intraoral scanner is provided, having a film made from an elastomer, a lip ring and a vestibular ring, with the film extending between the lip ring and the vestibular ring, being held taut by these and forming a tubular section between them. It is provided that the film (20) is prefabricated on the inner side (32) of its tubular section with a sliding element (36), in particular altering the surface of the film (20) there, produced by a surface treatment and firmly bonded to the film (20), with a sliding friction coefficient μG of less than 1.5, preferably less than 1.

A lip/cheek retainer particularly suitable for use with an intraoral scanner is provided, having a film made from an elastomer, a lip ring and a vestibular ring, with the film extending between the lip ring and the vestibular ring, being held taut by these and forming a tubular section between them. It is provided that the film (20) is prefabricated on the inner side (32) of its tubular section with a sliding element (36), in particular altering the surface of the film (20) there, produced by a surface treatment and firmly bonded to the film (20), with a sliding friction coefficient μG of less than 1.5, preferably less than 1.

Methods of immobilizing the head of a patient include heating a thermoplastic mask preform to a formable temperature, forming the thermoplastic mask over at least a mouth of the patient, and pushing a mouth receiving end of a bite piece into a portion of the thermoplastic mask preform that is positioned over the mouth of the patient, which moves the portion of the thermoplastic mask preform into the mouth of the patient. The methods also include allowing the thermoplastic mask preform to cool from the formable temperature, causing the portion of the thermoplastic mask moved into the mouth of the patient to harden.

Methods of immobilizing the head of a patient include heating a thermoplastic mask preform to a formable temperature, forming the thermoplastic mask over at least a mouth of the patient, and pushing a mouth receiving end of a bite piece into a portion of the thermoplastic mask preform that is positioned over the mouth of the patient, which moves the portion of the thermoplastic mask preform into the mouth of the patient. The methods also include allowing the thermoplastic mask preform to cool from the formable temperature, causing the portion of the thermoplastic mask moved into the mouth of the patient to harden.