Hypodontia is an anomaly that means the absence of rudiments of one or at most six teeth. Treatment of hypodontia in younger patients usually starts with orthodontic therapy and ends either orthodontically with occlusal adjustment or with fixed prosthetics and implants. In this paper, we aim to describe hypodontia and other dental agenesis and the types of treatment that include orthodontic therapy followed by fixed prosthodontic treatment with implants or dental bridges. We also want to present the space maintainer, its manufacturing process and its functions. The process and planning itself will be documented and illustrated with pictorial material and a description of the process. A descriptive method of literature collection and evaluation is used. The main source of information is professional literature, which includes articles as well as books and journal chapters. The literature is found in libraries and subject databases such as PubMed, Medline, ScienceDirect, etc. Space maintainers are fabricated and documented in a dental laboratory in collaboration with the co-mentor. We made space maintainers for two patients, both in the classical and digital way. We made two classic maintainers with a wire loop, a space maintainers with a trans palatal arch and a space maintainer with a lingual arch. All space maintainers were made with both methods. The classic space maintainer consisted of adjusting the ready-made ring and shaping the wire with pliers, soldering and polishing. The digital one, on the other hand, involved the creation of a digital study model, design in a digital modeling program. The products were documented with pictorial material in the patient’s mouth, and finally cemented. Through the literature, we determine the importance of space maintainers for the treatment of agenesis, as well as the use of digital technology in its design. In the second part of the diploma thesis we therefore compare the production of holders by classical and digital methods. Space holders designed and manufactured in a computer program have a better fit around the tooth and less chance of error.
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