1/25. The surgical uncovering and orthodontic positioning of unerupted maxillary canines.1. The presence of the maxillary canine is vital to the function and esthetics of the dental complex. The availability of this tooth must be carefully considered during an orthodontic diagnosis. Lack of space is the most common cause of canine impaction. Other contributing factors are that this tooth has the longest period of developmenent and that it is bigger longer, and travels farther while erupting than any other tooth. 2. Proper management of unerupted canines is a challenge to the dental practitioner. Maxillary canines are found impacted to both the buccal and the lingual. Palatal impactions are much more common than labial impactions, but, of the two, labial impactions are more difficult to manage. 3. An appropriate surgical procedure which opens to the crowns of unerupted teeth is a key to uneventful orthodontic positioning of these teeth. Packing the follicular space with baseplate gutta-percha and keeping the crown open to the oral cavity with surgical WondrPak is an effective method of making the tooth erupt into the oral cavity. 4. Modern preformed bands and improved cements make the placement of attachment on malposed teeth relatively easy. Direct bonding techniques are also of value in the management of unerupted teeth. 5. It is practical to move teeth orthodontically from seemingly impossible positions into ideal alignment. Such teeth will function normally, and no evidence will be left of their original position or of their having been moved over long distances.- - - - - - - - - - ranking = 1keywords = complex (Clic here for more details about this article) |
2/25. Second premolar serial extraction.serial extraction of mandibular second premolars should be considered if they are impacted or in cases with moderate arch length deficiency combined with an absence of dentofacial protrusion. The favorable dental changes associated with this approach greatly minimize future orthodontic treatment complexity and time.- - - - - - - - - - ranking = 1keywords = complex (Clic here for more details about this article) |
3/25. Compound odontoma--diagnosis and treatment: three case reports.Odontomas are the most common type of odontogenic tumors and generally they are asymptomatic. This paper describes three cases of compound odontomas diagnosed in children due to dislodgement or over-retention of primary anterior teeth and/or swelling of the cortical bone. In all cases, the surgical excision of the lesions was performed and, in one case, orthodontic treatment was adopted in order to move an impacted permanent tooth to its normal position. The results achieved indicate that the early diagnosis of odontomas allows the adoption of a less complex and expensive treatment and ensures better prognosis.- - - - - - - - - - ranking = 1keywords = complex (Clic here for more details about this article) |
4/25. Management of the impacted or displaced maxillary canine.The maxillary canine is commonly displaced or impacted. Monitoring the normal development of the dentition is important to identify and treat potential problems and hence minimise the need for later, more complex therapy. This paper discusses some problems that may occur and the subsequent treatment of these problems, by illustration with five case reports.- - - - - - - - - - ranking = 1keywords = complex (Clic here for more details about this article) |
5/25. Endoscopic removal of an ectopic third molar obstructing the osteomeatal complex.We report a rare case of an ectopic third molar at the level of the osteomeatal complex. A 21-year-old man came to us with a left-sided nasal obstruction of 2 years' duration. Computed tomography of the paranasal sinuses revealed that an aberrant tooth was obstructing the osteomeatal complex and bulging into the ethmoid infundibulum. Opacity of the entire left maxillary sinus indicated the presence of an associated cystic formation. A transnasal endoscopic sinus technique was employed to create a large middle meatal antrostomy and to remove the tooth as well as the cystic contents and cyst wall. Pathologic analysis revealed that the cyst was dentigerous. After recovery from surgery, the patient resumed nasal breathing. The endoscopic surgical approach used in this case caused less morbidity than do the more common methods (e.g., the Caldwell-Luc procedure) of removing ectopic teeth from the sinus.- - - - - - - - - - ranking = 6keywords = complex (Clic here for more details about this article) |
6/25. Spaced dentition--open, close or redistribute?A spaced dentition can be due to various reasons such as hypodontia, tooth size discrepancy and impeded eruption. The dilemma for clinicians is whether to close, open or redistribute space. Closing space by orthodontics eliminates the need for prosthetic rehabilitation but it might compromise aesthetics and function. On the other hand, opening space is more complex and requires long-term maintenance. Based on these drawbacks, a careful occlusal analysis and an individualized treatment plan are mandatory for achieving the best result. The prognosis for closing space and substituting congenitally missing maxillary laterals with canines depends on factors such as overjet, lip support, crown colour, shape and root position. If these are unfavourable, opening space for prosthetic replacement is then preferred. Discrepancy between tooth and jaw size results either in spacing or crowding. The location of the spacing and the amount of overjet are important factors guiding the direction of treatment.- - - - - - - - - - ranking = 1keywords = complex (Clic here for more details about this article) |
7/25. Controlled, rapid uprighting of molars: a surprisingly simple solution the pivot arm appliance.In orthodontic cases where the regional anatomy provides limited room for eruption, there is etiologically a higher occurrence of tipped/impacted second molars. Although second molar extraction with third molar replacement is a useful option, the "Pivot arm Appliance" encourages the uprighting of the second molar as a preferred treatment. The most unique and important attribute of the "Pivot arm Appliance" is the rotating tube. In cases of access limitation, the disto-occlusal surface of the molar presents as one area that is accessible. Other features of the "Pivot arm Appliance" include: The position of the rotator tube delivers optimal rotational force through the pivoting action of the tube/arm complex. The "Pivot arm Appliance" takes advantage of the efficiency and simplicity of a Class I lever system. The anatomical fulcrum being the dense cortical bone located anterior to the ascending ramus. The vertical spring system is compact, reliable and delivers gentle controlled force in rotational direction. The lingual location of the "Pivot arm Appliance" does not hinder the function of the tongue, impinge on the soft tissue or interfere with normal masticatory function. The ease of placement of the rotator tube and subsequent insertion of the spring. It is well to note the uprighting appliance provides a very useful and practical approach to the unique problem of severely tipped second molars with limited buccal access. The "Pivot arm Appliance" does not function only in these situations but can be used in all cases of second molar uprighting of a moderate to severe nature.- - - - - - - - - - ranking = 1keywords = complex (Clic here for more details about this article) |
8/25. Eruption of a severely displaced second permanent molar following surgical removal of an odontoma.The process of tooth eruption is very complex, and many of its factors remain unknown. Although radiographic features can provide clues into the eruptive potential of a tooth, underlying factors that affect tooth development and eruption are not as well defined, ranging from local disturbances to systemic disease. In addition, it is difficult to predict which teeth will require treatment and when the optimal time is to intervene. The purpose of this report is to illustrate the eruption potential of an impacted molar following the removal of a developing odontoma, despite its unfavorable position in the bone, complete root development, and orthodontic attachment loss.- - - - - - - - - - ranking = 1keywords = complex (Clic here for more details about this article) |
9/25. Personal computer-based three-dimensional computed tomographic images of the teeth for evaluating supernumerary or ectopically impacted teeth.This study describes the use of personal computer (PC)-based three-dimensional computed tomographic (3D CT) images in the evaluation of supernumerary and ectopically impacted teeth. Three selected cases were presented as examples of the more complex cases in which 3D CT imaging added information not readily available from periapical, occlusal, or panoramic radiographs. patients were CT scanned from the occlusal plane to the periapical region of the impacted teeth. Digital Image and Communications in medicine CT data were transferred to a personal laptop computer using a network line. 3D volume rendering was performed using PC-based volumetric analysis software. 3D CT-reformatted imaging of the teeth is a useful way to investigate and localize supernumerary or impacted teeth. Newer software that enables this investigation using a PC provides a relatively inexpensive way to carry out such investigations, making it easier for dental practitioners to request such investigations and to view the results in real time in their own offices.- - - - - - - - - - ranking = 1keywords = complex (Clic here for more details about this article) |
10/25. Management of impacted cuspids using 3-D volumetric imaging.Management of impacted cuspids is a complex clinical problem involving proper assessment and interdisciplinary treatment planning. In this paper, we describe the use of 3-D volumetric imaging in the management of impacted cuspids and illustrate this application in case reports of maxillary and mandibular impacted cuspids.- - - - - - - - - - ranking = 1keywords = complex (Clic here for more details about this article) |
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