Occlusion is since ages considered to be one of the prime important tool for the achievement of harmonic function thus eventually leading to a pleasing and satisfying smile. This textbook is a thoughtful and tedious work by the author to bring forward in a simple and self explanatory form all the aspects in and around occlusion in the field of Orthodontics. The author always wanted the text to be concise and practically sound for clinical applications. This book is considered by the author to be yet another milestone in the understanding of occlusion from an Orthodontist's view.
The relationship between static and dynamic occlusion is one of the aspect of study of functional occlusion.Orthodontic treatment has the capacity to change static and functional occlusion. It is assumed that ideal static occlusion is compatible with ideal functional occlusion but it is not necessary.It has traditionally been assumed in orthodontics that correction of the parts of the dentofacial complex to an anatomical norm along with a class I relationship of the buccal segments and alignment of teeth would yield a “good functional occlusion” that is in harmony with temperomandibular joints and associated musculature. The question is: “ Can we, or should we accept this assumption as true?” As valuable as our anatomical guidelines and parameters may be in diagnosis and treatment planning, we should assess the function of the occlusion we treat orthodontically, both prior to and after treatment
A major challenge in orthodontics is to provide a treatment result that remains stable after appliances are removed. Orthodontic treatment can move teeth from their neutral positions, which increases potential for future relapse. The literature from the University of Washington, Seattle, shows that relapse is pervasive and of considerable magnitude (Little RM. Stability and relapse of mandibular anterior alignment: University of Washington studies. Semin Orthod 1999;5:191-204). The intent of this study was to quantify the posttreatment dental changes that occurred over approximately a quarter century in a cohort of women who had received comprehensive orthodontic treatment as teenagers.
The TMJ is a complex joint composed of two non-attached synovial joints connected by the rigid mandible. In the normal TMJ, the disc maintains its’ approximate position between the condyle and fossa and moves anteriorly during the translation and rotation of the joint to protect both surfaces. True synovial joints, both TM joints are surrounded by joint capsules which enclose the joints and the meniscus. The etiology of TMD is usually considered multifactorial including untreated malocclusions, unstable occlusion, stress and other psychologic factors, trauma, individual predisposition, and structural conditions. The view of the influence of occlusion on the development of TMD has varied from none to considerable. Orthodontic treatment has been variously cited both as a protective and harmful factor in temporomandibular disorders (TMD) etiology. Therefore, it is important to understand associations between different malocclusions, orthodontic treatment, and signs and symptoms of temporomandibular disorders (TMD). So, a detailed knowledge of the anatomical and functional components is necessary to assess its key role in orthodontics.
Occlusion is one of the most important parts of treatment of patients with complete dentures prosthesis. Many denture prosthesis fail if the occlusion is not planned or developed in harmony and therefore the concept of occlusion is universal. The concept of occlusion regarding design and fabrication of a prosthetic occlusion have let to fascinating controversies among occlusion. The Occlusion is bringing together or contacting of the mandibular and maxillary teeth and it is a dynamic concept. A firm understanding of occlusal relationships is essential for any phase of restorative dentistry. The importance of occlusion to the overall success or failure of treatment has been emphasized by prosthodontists.
Successful completion of restorative implant prosthodontics is dependent on the effective implementation of occlusal principles. Occlusion is critical for implant longevity because of nature of attachment of bone to the surface of implant. The ability of bone implant interface to withstand specific ranges of occlusal stress especially during initial loading with the prosthesis is not completely understood. This book emphasizes on the concepts and considerations that should be followed with great precision to achieve successful occlusion in implant dentistry.
Occlusion is an imperial factor in success of restoration, as the design of the restoration can utilize occlusal forces constructively. The occlusal forces in implant dentistry includes the transosteal forces, bone biomechanics, basic biomechanics, differences in natural teeth and implants, muscles of mastication and occlusal forces and bone resorption. In addition systematic individual treatment plans and precise surgical prosthodontic procedures based on biomechanical principles are pre requisite for optimal implant occlusion.
The demand for cosmetic dentistry has never been greater. This has led many dentists to invest considerable time, effort and money in mastering various cosmetic procedures and techniques. While this is commendable, it should be recognized that it is one thing to be able to make beautiful teeth and an entirely different thing to make beautiful teeth that actually last and function in harmony with the rest of the masticatory system. An acceptable cosmetic result, without regard for function and/or parafunction, will often result in premature case failure. This text emphasizes the correlation of occlusion and its importance in restorative dentistry.
The three plane of space in which malocclusion exists are Vertical, Transverse and Horizontal. For a complete and proper treatment planning one must consider to correct discrepancies lying in all the three planes. The correction of transverse maxillary deficiency can be an important component of an Orthodontic treatment plan. Control of transverse discrepancies in the correction of dentofacial deformities is extremely important for the ultimate satisfactory achievement of a stable and functional occlusion. Trained Orthodontists can carefully analyze each problem presented, and make decisions on the basis of their scientific and clinical training. Thus,this book is an attempt to create a better understanding of management of transverse dysplasias as an important part of Orthodontic treatment modality which can be a very valid solution to many space problems during treatment.
This research was designed to provide an insight into the state of occlusal patterns, tooth size and arch dimension of the primary dentition in a group of preschool Egyptian and Yemeni children. A total of 1113 Egyptian and Yemeni children aged from 3-5 years were examined. A sample of 597 children (320 girls and 277 boys) was selected from the examined children to meet the following criteria; to have a full complement of primary dentition, no missing teeth, no interproximal carious lesions and to be free from any dental malformations. Children with systemic health disease or children with tendency to bruxism and abnormal habits were excluded. For each subjects an alginate impression was taken for both dental arches and poured in dental stone, to produce dental casts on which the following measurements were recorded for each arch; tooth size, arch dimensions, occlusal relationships and the presence or absence of spacing and crowding. A digital calliper was used to record the measurements. The recorded data was tabulated and statistically analyzed with SPSS 20.0® (Statistical Package for Scientific Studies) for Windows.
The Book gives insight into the ideal occlusion characteristics of primary dentition and the prevalence of malocclusion in 4-6 year old Indian children.The extensive literature survey in the book will help one to compare the occlusion and malocclusion characteristics of different ethnic/populations groups. This book will sure to serve as a guide for the research scholars as well as the graduate and post graduate students to pursue studies related to occlusion characteristics of the primary dentition. Its an excellent tool for those who are pursuing studies related to occlusion, so that they can compare their results with the valid statistically proven results of the book. This book is must for all the post graduate students of Pediatric and Orthodontic branch of dentistry.What more, It can be a valuable asset to the libraries around the world.
Implants in orthodontics is a vast topic which occurs spider screw, onplant, mini-implant and aarhus skeletal anchorage system. this book gives an insight about everything which is in relation to orthodontic implants and its use in orthodontics and dentofacial orthopaedics. This book covers all the types of orthodontic implants. it covers also the history, classification, indications and contra-indications of the orthodontic implants
Team work is the essence for the success of any venture. A multidisciplinary approach is often necessary to treat and prevent dental problems in a patient. Orthodontics and periodontics are interrelated in a variety of ways.Orthodontic tooth movement, which is the basis of the orthodontic treatment, is possible because of the inherent nature of the periodontium. It is in connection with adult orthodontics that periodontal factors are becoming more important to the orthodontist. Orthodontics in the adult patient, specially the periodontally compromised patient requires adequate periodontal considerations to maintain the periodontium in a healthy condition during and after treatment.
Patient compliance, anchorage preservation and lack of anchor units often present a perplexing problem for orthodontics, mainly because of a lack of effective devices. Headgear, which is used to control anchorage and requires patient cooperation, is a device that has been used in orthodontics for at least 100 years. Despite longevity in the field, however, the use of headgears has given only moderate success. In recent years, with the introduction of temporary anchorage devices (TADs), a paradigm shift has occurred in the overall perspective towards patient compliance, preservation of anchorage and facilitation of treatment for various types of malocclusions.
Evaluation of Space Analysis is a well-established diagnostic tool in the practice of clinical orthodontics. Knowing this before treatment begins, allows the clinician to discuss with the patient various treatment possibilities required to correct the problem which may include extractions of certain teeth, restorative buildup of undersized teeth, or inter-proximal reduction. The technological advancements are making their way into the field of orthodontics. Models can be stored and viewed on computers using Software such as emodel, OrthoCAD and 3Shape Ortho System. They make image retrieval faster and easier, eliminating the need for massive amounts of physical storage areas for plaster models. The technology also allows the clinician to effectively diagnose a case by including tools such as arch length discrepancy and Bolton’s ratio calculation capabilities.