The reconstruction of cephalic defect and more precisely from the face is not a recent issue. Indeed, the use of facial masks in a symbolic perspective was reported in ancient Egypt. Few references to facial prostheses are then found. It is really only with the work of the French surgeon Ambroise Paré that the first surgical techniques concerning facial epithetics are described. Techniques and materials tend to evolve over the centuries. But then came WWI, which marked a major turning point and brought to light the broken faces and the impact of maxillofacial trauma. Rehabilitation became a major issue in society. The war was a driving force for change from both a surgical and prosthetic point of view, revealing in particular such brilliant designers as the American sculptor Anna Coleman Ladd. Today, the profession is undergoing a major upheaval, linked to the growing development of biotechnological constructions. This historical review aims to retrace the evolution of the rehabilitation of facial substance loss over the ages and to outline the prospects for the foreseeable future. (Int J Maxillofac Prosthetics 2021;4:2-8)

Taken together, the results suggest that an ideal ULF-TENS application would last 40 min to obtain sufficient muscle relaxation both in patients with masticatory system disorders and healthy subjects, a time constraint that is consistent with everyday clinical practice.

Lateral segmental mandibulectomy can be associated with sequelae, such as mouth opening limitation and mandibular deviation, that lead to altered oral functions (chewing, swallowing, speech) and complex prosthetic management. The authors present a new protocol for surface electromyography (sEMG) and mandibular motion recording to help clinicians with decision-making and dental prosthetic treatment planning for segmental mandibulectomy. The clinical case of a patient with a reconstructed titanium endoprosthesis is presented. The MAC2 protocol is used and consists of chronologically performing various recordings by using a device for sEMG and mandibular tracking. During the orofacial reeducation and dental prosthetic reconstruction, three therapeutic steps can benefit from the MAC2 protocol: to analyze the initial muscular imbalance, to provide guidance in the choice of maxillomandibular relationship and to quantify the functional improvement. sEMG of masticatory muscles is a useful diagnostic tool in a context of mandibular kinematic disorders and the MAC2 protocol adds some guidance for dental prosthetic rehabilitation in the context of segmental mandibulectomy. (Int J Maxillofac Prosthetics 2021;4:47-54)

silicate ceramics results in a micromorphological three-dimensional porous surface that allows micromechanical interlocking of the luting composite [4,5]. The effects of acid etching depend on the acid type and its concentration, the etching time and the ceramic type being treated.

Poly-(etheretherketone) (PEEK) began to be used in the field of odontology more than 10 years ago, especially in relation to the creation of removable partial dentures. Here we report the case of a 62 years old woman diagnosed with histamine intolerance (or histaminosis), who presented a very particular set of oral symptoms. She described a certain tingling, burning, and swelling of the mucous membranes. These symptoms seem to be linked with the wearing of a resin occlusal splint which was initially prescribed to compensate for the absence of a meniscus in the left temporomandibular joint of the patient. After a multidisciplinary concertation, it was decided to create a new splint with a resin-free material. For this reason, the production of a PEEK prosthesis was considered. Following the installation of the occlusal splint in the patient, and after clinical adjustments, she described the occlusion positioning as correct and a disappearance of the symptomatology. Mechanically, PEEK seems to have higher mechanical resistance than PMMA. Despite these characteristics, the use of PEEK still presents some limitations, especially concerning the overall aesthetic. Additionally, the prescription of the occlusal splint seems to be limited to patients who need special care. The case presented here thus confirms a new perspective concerning the use of PEEK as an occlusal splint.