Lower molar distalization with the unilateral Frozat appliance.
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The aim of this study was to evaluate the median survival time of fixed and removable space maintainers related to age groups, gender, and their distribution in upper and lower dental arches. The adherence of patients to a periodic recall program and the success rate of different types of space maintainers related to different arches were also evaluated. This study included 663 patients aged between 4-15 years old that were treated between the years of 1997 and 2002. The patients were categorized into four main groups: lost to follow-up, failed, successful, and censored at the end of study. Three hundred forty-five space maintainers were considered lost to follow-up, 83 were considered failed, 206 successful, and 20 censored-at-end. The overall median survival time of the appliances was 6.51 months. Median survival time was 7.25 months in the 4-6 age group, 6.35 months in the 7-12 age group, and 7.0 months in the 13+ age groups. Median survival time was 5.76 months in girls and 7.11 months in boys. Median survival time of space maintainers was 7.17 months for maxilla and 6.69 months in the mandible. Median survival time was 5.25 months for space maintainers fabricated in both arches.
Early orthodontic interventions are often initiated in the developing dentition to promote favourable developmental changes and remove or suppress those that are unfavourable. Early interceptive orthodontics can eliminate or reduce the severity of a developing malocclusion, the complexity of orthodontic treatment, overall treatment time and cost. It also improves self-esteem in the subjects and parental satisfaction. Early detection and appropriate referral of cases requiring interceptive orthodontics are important. However, lack of awareness among school children, parents and primary-care personnel (dental nurses and dental officers) may result in patients not being referred for timely interceptive intervention. This article presents a general view of the scope of interceptive orthodontics that can be carried out in early mixed dentition, i.e. when the permanent incisors and molars are erupting into the oral cavity.
It is evident from the data assembled in this paper that a program of appliance therapy in the pedodontic department of a dental school can provide valuable clinical experience for students and benefits for a high percentage of the children who are treated. It is clear that selection of cases, faculty supervision, diagnosis, patient cooperation, and administrative control of patient assignment are the key to a successful program.
PURPOSE: The purpose of this report was to describe the quantity of published literature and types of studies supporting the use of 4 pediatric dentistry procedures: (1) ferric sulfate pulpotomy; (2) stainless steel crowns; (3) space maintainers; and (4) atraumatic restorative technique (ART). METHODS: When available, titles and abstracts of reports written in English and published over a 36-year period (1966-2002) concerning these procedures were retrieved from MEDLINE. They were classified using a modified classification scheme that, in addition to the study designs, also considered the 4 dimensions of measuring dental outcomes. RESULTS: The quantity of available literature concerning each dental procedure varied considerably. Even though many reports were published on treatments, only a small proportion of the published literature for each procedure was found to evaluate outcomes, regardless of outcome dimension. Besides outcomes evaluations, studies on techniques, material properties, and review articles comprised a large proportion of the literature. Clinical dimension of outcomes was most commonly studied. Case series and case reports were the most frequently used study designs to report outcomes. CONCLUSIONS: The outcomes-related literature to support some of the commonly performed treatments is limited both in quantity and study types. More reports are needed to develop the evidence base to support the commonly performed procedures in pediatric dental practice. Additional analyses reporting of the literature are also needed to assess internal and external validity of the studies.
Patients with congenitally missing teeth (hypodontia) present with complex problems. Meeting their treatment needs requires a joint effort between the disciplines of orthodontics and restorative dentistry. There are a number of options available to restore space generated by missing teeth. In the majority of patients orthodontic treatment will be required before this space can be restored satisfactorily. The second part of this series reviews the orthodontic considerations for various options.
AIM: This study was designed to find the most reliable method of measurement of mesiodistal tooth diameter. METHODS: Measurements were made of all erupted permanent teeth of 14 orthodontic study casts. These measurements were made directly by using A) a digital calliper, B) measuring photocopies of casts with a calliper, C) a Magiscan Image Analysis using a photocopy of the casts. Measurements derived from the two methods were compared by statistical analysis. RESULTS: These showed that the electronic digital calliper was the most reliable method of measuring mesiodistal tooth diameter using dental study casts. The measurement of photocopies was unreliable and the image analysis method had a too high error factor.
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The multiple loss of primary molars due to caries or other reasons in the primary or mixed dentition can lead to severe mutilation of the developing dentition. It is advisable to construct a removable appliance to maintain the relationship of the remaining teeth and to guide the eruption of the developing teeth in order to prevent the child from developing psychological and speech problems. However, parental and patient cooperation are imperative if the pediatric patient is to exercise the necessary care to maintain the denture in a clean and healthy condition. This case report identifies the complications that can arise from the uncontrolled misuse of a pediatric denture. It is concluded that as well as the parents, the pediatric dentists play an important role in the follow-up of the young patients for whom pediatric dentures are constructed. Additionally, patients should be re-called for check-up visits or instructed to refer to the dental clinics in 6-month intervals. Brochures that inform the patients and their parents about the application and care of pediatric dentures and space maintainers should be given.
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Standard of practice does not always equal standard of care. When faced with a problematic situation, the dentist will either treat from experience, or else depend on what has been suggested by others. In some cases, anecdotal information may not be applicable. Recommended clinical procedures have not always been supported by adequate research. Although midline correction has been expressed as a certainty, it does not always occur. Patience on the part of the practitioner will allow the child to be observed periodically, and at the same time allow the dentition to develop naturally. Orthodontic treatment can always be used, once the permanent canines erupt.
AIM: This retrospective study was designed to compare the responses of the upper and lower lip curves in young growing males, to orthodontic treatment involving either four premolar extractions or the holding of the E-spaces without premolar extractions. METHOD: Pre- and post-treatment lateral cephalograms of 67 premolar extraction and 30 nonextraction patients were assessed. The results were subjected to analysis of variance to search for statistically significant differences amongst the pretreatment variables and changes in depths of lip curves. Pearson's correlation coefficients were also calculated and stepwise regression analysis undertaken. RESULTS: A wide range of lip curve behaviour was seen in individual patients within all groups. No significant differences were found in the change in depth of lip curve amongst the various extraction and nonextraction groups. The inherent morphology of the soft tissues appeared to be the greatest determinant of lip curve behaviour with treatment. CONCLUSIONS: It would appear that neither premolar extraction nor nonextraction treatment, if based on appropriate diagnostic criteria and followed with competent clinical management, will necessarily lead to direct effects on lip curvature.
An adult male patient who had lost his maxillary left central incisor seven years ago in a traffic accident presented with a chief complaint about his unaesthetic appearance associated with the loss of his maxillary left central incisor space, a Class III molar occlusion, and an anterior open bite malocclusion due to tongue-thrust swallowing. Fixed orthodontic treatment was rendered following fan-type expansion of the maxilla. A Maryland bridge as a minimally invasive dentistry approach was used as a retention appliance and the patient's aesthetic appearance was restored.
PURPOSE: The purpose of this clinical evaluation was to assess fixed space maintainers for child patients whose missing primary molars were replaced with space maintainers made with everStick during a 12-month follow-up period. EverStick is a semi-manufactured product made of glass fibers, thermoplastic polymer, and light-curing resin matrix for reinforcing the dental polymer. METHODS: Twenty-three clinical cases presented in this paper were evaluated in the Department of Pediatric Dentistry, Marmara University, Istanbul, Turkey. EverStick was used as part of a space maintainer on occasions where 1 or 2 teeth were lost in either the maxillary or mandibular arch. RESULTS: This study showed that the glass fiber-reinforced composite resin space maintainers functioned well during a mid-term evaluation. CONCLUSIONS: Clinical advantages of everStick include: (1) cost and time savings; (2) no need for a cast model; (3) no second visit; (4) easy to apply; (5) reliable adhesive bonding; (6) no metal allergy; (7) easy to clean; (8) natural feel; and (9) esthetically desirable.
OBJECTIVE: This study investigates the clinical performance of fixed space maintainers placed on seriously damaged abutment teeth. METHODS: Crowns were placed on damaged abutment primary teeth. Fixed space maintainers were prepared by using rectangular wire between the window in the facial surface of the crowns and other abutment teeth and were subsequently bonded with a flowable resin composite. This procedure was introduced clinically, and the cases were observed over a period of twelve months. RESULTS: Twenty-seven fixed space maintainers (25 on lower jaw, two on upper jaw) were included in this study. No clinical failure was recorded in any of the cases in the observation time, and the rate of clinical performance was 100%. CONCLUSION: The study shows the effectiveness of fixed space maintainers combined with stainless steel crowns ("open-face fixed space maintainers") which were placed on primary molar teeth used as abutments in cases with extensive caries and loss of occlusogingival dimension.
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Among the malocclusions involving skeletal discrepancies, Class III occurs with the least frequency; however, it is also severe in the majority of cases. Compared with a Class II malocclusion, the mesial occlusion invariably manifests itself with greater deforming characteristics of facial harmony. The deficiency in the middle third of the face and/or the excessive length of the lower third of the face leads to significant loss of the profile's harmony. Good treatment strategies for this type of malocclusion could involve anything from intervening in the mixed dentition and/or permanent dentition in young adults to the combined orthodontic and surgical approach in patients without growth potential, who do not allow for compensations. This case report illustrates a Class III adolescent patient with severe facial profile deformity during the pubescent growth spurt, treated without extractions or orthognathic surgery.