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Dental Press Journal of Orthodontics 2022To analyze the variations of hard palate volume in adults with normal occlusion and different facial types and patterns, by using a three-dimensional analysis on digital...
OBJECTIVE
To analyze the variations of hard palate volume in adults with normal occlusion and different facial types and patterns, by using a three-dimensional analysis on digital casts.
METHODS
The dental casts of 70 Caucasian adults (28 men, 42 women), mean age of 16.4 years (SD 1.3 years), were scanned by using a tridimensional scanner (Delcam PowerSHAPE™, 2010, Birmingham, UK). Close points were selected in the gingival and cervical regions on the lingual surface of the maxillary teeth, to analyze palatal morphology. The facial patterns and types, and the measurements (width, length, height, volume) of the space on the hard palate were compared using analysis of covariance (ANCOVA), with age as the covariate, and sex as the independent variable. The significance level of 5% (p < 0.05) was adopted.
RESULTS
This study showed that the measurements of the width and length were similar among the mesofacial, dolichofacial and brachyfacial facial types, although the height and volume of the space on the hard palate were slightly smaller in dolichofacial individuals, and both Pattern I and Pattern II individuals showed no significant changes for the four measurements. The mean values among facial patterns were: Pattern I - width 38.31±2.59 mm; length 37.44±2.42 mm; height 17.03±2.42 mm and volume 10.52±1.72 mm3; Pattern II - width 37.48±2.44 mm; length 37.48±2.44 mm; height 16.79±2.42 mm and volume 10.41±1.65 mm3 (p>0.05 for all variables).
CONCLUSION
There were no significant differences for the facial patterns and facial types of the individuals compared in the analyzed sample.
Topics: Adult; Male; Female; Humans; Adolescent; Face; Palate, Hard; Neck; Splints; Body Height
PubMed: 36449960
DOI: 10.1590/2177-6709.27.5.e222115.oar -
Current Health Sciences Journal 2020The literature date estimated that about 5% of all oral cavity cancers are hard palate cancers while soft palate cancers account for about 5-12% of oropharyngeal...
The literature date estimated that about 5% of all oral cavity cancers are hard palate cancers while soft palate cancers account for about 5-12% of oropharyngeal cancers. Although rare, usually these tumors had a more aggressively behavior than other oral cancer sites. That is why our study aimed to investigate comparatively the epidemiological, clinical and histopathological peculiarities of the two palatal sites of oral squamous cell carcinomas. We conducted a retrospective study limited to a period of 10 years in a single medical institution to investigate the morphoclinical profile of such tumors. We found that patients with hard palate SCCs had an average age slightly larger compared to those who developed soft palate tumors. Also, those with hard palate tumors are mostly diagnosed in less advanced stages compared to those at the level of the soft palate, and implicitly the former had a longer survival time. Histopathologically the most encountered hard palate SCC were the conventional well-differentiated tumor, and from the peculiar SCC variant the papillary and verrucous forms while for the soft palate SCC prevailed the moderate and poor differentiated conventional SCC and from the peculiar SCC variant the basaloid and acantholytic forms. In conclusion hard palate tumors differ in many aspects from those of the soft palate, and thus specification of the origin tumor site become important for the assessment of prognosis, treatment and survival outcome of such patients.
PubMed: 33717510
DOI: 10.12865/CHSJ.46.04.06 -
The Cleft Palate-craniofacial Journal :... Sep 2023The aim was to evaluate dental arch relation and craniofacial growth for individuals born with unilateral cleft lip and palate (UCLP), who had two-stage palatal surgery,...
OBJECTIVE
The aim was to evaluate dental arch relation and craniofacial growth for individuals born with unilateral cleft lip and palate (UCLP), who had two-stage palatal surgery, with hard palate closure (HPC) at the ages of 3 or 8 years.
DESIGN
Longitudinal cohort study.
SETTING
Ceft lip and palate team in Gothenburg, Sweden.
PATIENTS
The inclusion criteria were nonsyndromic individuals born with complete UCLP who were consecutively operated according to two different surgical protocols; soft palate closure at 6 months followed by hard palate closure at the age of 3 years (HPC3) or at the age of 8 years (HPC8). In this evaluation, 28 individuals had HPC3 and 59 individuals had HPC8.
INTERNVENTIONS
The main outcome, longitudinal series of dental casts and lateral radiographs from the ages of 5, 10, 16, and 19 years, were evaluated using GOSLON Yardstick and cephalometric analysis.
RESULTS
At the age of 10 years, 78% of the individuals with HPC3 demonstrated GOSLON scores of 1 and 2 and 86% in HPC8. At the age of 19 years, 54% of the individuals exhibited GOSLON scores of 1or 2 when compared with 74% in HPC8. A statistical significant difference for SNA was observed at the age of 5 years ( .004), with a lower SNA in HPC3, but not at the ages of 10, 16 and 19 years. At the final age, SNA was 75.2° for HPC3 and 76.8° for HPC8.
CONCLUSIONS
The decrease in age for HPC did not have an adverse effect on long-term dental arch relationship or craniofacial growth.
Topics: Humans; Child, Preschool; Child; Young Adult; Adult; Palate, Hard; Cleft Palate; Cleft Lip; Longitudinal Studies; Dental Arch; Treatment Outcome
PubMed: 36597376
DOI: 10.1177/10556656221140676 -
The Journal of Veterinary Medical... Sep 2021Pharyngeal collapsibility has been used as diagnostic criteria in dogs, whereas the normal range and quantitative method have not been studied. Dynamic and static...
Pharyngeal collapsibility has been used as diagnostic criteria in dogs, whereas the normal range and quantitative method have not been studied. Dynamic and static computed tomography (CT) was performed in 23 normal Beagle dogs to quantify the nasopharyngeal collapsibility at different locations. Using dynamic CT, maximum and minimum nasopharyngeal cross-sectional areas (CSAs) were measured at the level of the cranial end of the soft palate, pterygoid hamulus, foramen lacerum, bony labyrinth, and caudal end of the soft palate. The ratio of all maximum and minimum CSA to nasopharyngeal CSA at the level of the caudal hard palate (rCSAmax and rCSAmin) and the nasopharyngeal collapsibility were calculated. The differences of rCSAmax, rCSAmin, and nasopharyngeal collapsibility were analyzed at various locations. The nasopharyngeal collapsibility at the level of foramen lacerum, bony labyrinth, and caudal end of soft palate were higher than the others. At the level of the caudal end of the soft palate, rCSAmin was lower than that of the foramen lacerum and bony labyrinth, whereas rCSAmax at foramen lacerum was higher than that of the caudal end of the soft palate. These results indicated that the nasopharynx at the level of foramen lacerum and caudal end of the soft palate were considered notable locations for evaluating collapsibility. Dynamic CT could show the nasopharyngeal dynamic profile and will be an adequate modality for evaluating nasopharynx. Our results will be helpful for further comparative studies in dogs with and without nasopharyngeal collapse.
Topics: Animals; Dogs; Nasopharynx; Palate, Hard; Palate, Soft; Skull; Tomography, X-Ray Computed
PubMed: 34248083
DOI: 10.1292/jvms.21-0216 -
Deutsches Arzteblatt International Nov 2021
Topics: Humans; Palate; Palate, Hard
PubMed: 35191371
DOI: 10.3238/arztebl.m2021.0083 -
Sultan Qaboos University Medical Journal May 2017Osteomas are benign slow-growing osteogenic lesions of unknown aetiology which can be central, peripheral or extraskeletal. Peripheral osteomas of the are very... (Review)
Review
Osteomas are benign slow-growing osteogenic lesions of unknown aetiology which can be central, peripheral or extraskeletal. Peripheral osteomas of the are very uncommon. We report a 72-year-old female patient who presented to the Department of Oral & Maxillofacial Surgery, Dental School of Athens, Athens, Greece, in 2015 with swelling of the palate following a tooth extraction. Clinical and radiographical features were indicative of a solitary peripheral osteoma of the hard palate. An excisional biopsy and histological examination of the lesion confirmed the diagnosis. No complications occurred during the postoperative period and there was no evidence of recurrence at a one-year follow-up.
Topics: Aged; Diagnosis, Differential; Female; Gardner Syndrome; Greece; Humans; Osteoma; Palatal Neoplasms; Palate, Hard
PubMed: 28690900
DOI: 10.18295/squmj.2016.17.02.018 -
The Journal of Clinical Pediatric... Sep 2022The surgical procedure of bony impacted supernumerary teeth (SNT) in hard palate is commonly done with poor visualization and uncomfortable posture. This study aims to...
OBJECTIVES
The surgical procedure of bony impacted supernumerary teeth (SNT) in hard palate is commonly done with poor visualization and uncomfortable posture. This study aims to introduce our primary practice of presurgical evaluation and guiding exodontia of bony impacted supernumerary teeth (SNT) in the hard palate to reduce surgical trauma, duration and uncertainty.
STUDY DESIGN
Twelve patients with impacted supernumerary teeth in hard palate were included. Intraoral scan and the three-dimensional (3D) reconstruction of the cone beam computed tomography (CBCT) file was superimposed, and virtual simulation of flap elevation and osteotomy was conducted on the rebuilt 3D model. A couple of surgical templates were designed with surgical planning software Mimics, fabricated by a 3D printer and were used to guide the extraction of the impacted SNT.
RESULTS
The surgical templates fitted well to the teeth and operation site. All the impacted SNTs were accurately located and extracted without damaging the adjacent vital anatomical structures. All patients had an uneventful postoperative recovery without infection or sensory disturbance.
CONCLUSIONS
The application of 3D printed surgical templates reduced trauma and increased the accuracy and predictability of surgical extraction of bony impacted SNT in hard palate. The results of this study increased the accuracy and predictability of surgical extraction of bony impacted SNT in hard palate, and reduced the surgeon's embarrassment and surgical trauma because of location difficulty.
Topics: Humans; Tooth, Supernumerary; Palate, Hard; Tooth; Tooth, Impacted; Cone-Beam Computed Tomography; Computers
PubMed: 36624912
DOI: 10.22514/jocpd.2022.005 -
Ear, Nose, & Throat Journal 2016We conducted a retrospective study to determine the incidence and treatment outcomes of neck metastases in patients with squamous cell carcinoma (SCC) of the hard palate...
We conducted a retrospective study to determine the incidence and treatment outcomes of neck metastases in patients with squamous cell carcinoma (SCC) of the hard palate and/or maxillary alveolus after surgical excision of the primary tumor. We also sought to identify any risk factors for recurrence. Our study population was made up of 20 patients-9 men and 11 women, aged 46 to 88 years (mean: 72.6)-who had undergone excision of an SCC of the hard palate and/or maxillary alveolus at a tertiary care cancer center over a 7-year period. Half of all patients were former tobacco users. Of the 20 tumors, 10 involved the maxillary alveolus, 4 involved the hard palate, and 6 involved both sites. Three patients were clinically categorized as T1, 9 as T2, 6 as T3, and 2 as T4; pathologically, 8 tumors were categorized as T4a. In addition to maxillectomy, a neck dissection was performed in 7 patients-4 therapeutically and 3 electively. Eight of 20 patients experienced a recurrence: 4 local, 6 regional, and 2 distant (several patients had a recurrence at more than one site). Univariate analysis identified perineural invasion (p = 0.04) as a statistically significant risk factor for recurrence. Of 14 patients with a clinicopathologically negative neck, 5 (36%) developed a cervical recurrence, and 4 of them died of their disease. An advanced stage (T4 vs.
hard palate and/or maxillary alveolus. Topics: Aged; Aged, 80 and over; Carcinoma, Squamous Cell; Female; Head and Neck Neoplasms; Humans; Incidence; Male; Maxillary Neoplasms; Middle Aged; Neck Dissection; Neoplasm Recurrence, Local; Palatal Neoplasms; Palate, Hard; Retrospective Studies; Tooth Socket; Treatment Outcome
PubMed: 27792826
DOI: 10.1177/014556131609510-1103 -
Journal of Surgical Oncology Dec 2019The reported risk of nodal metastasis in hard palate and upper gingival squamous cell carcinoma (SCC) has been inconsistent with inadequate consensus regarding the...
BACKGROUND AND OBJECTIVES
The reported risk of nodal metastasis in hard palate and upper gingival squamous cell carcinoma (SCC) has been inconsistent with inadequate consensus regarding the utility of neck dissection in the clinically negative (cN0) neck.
MATERIALS AND METHODS
Using the National Cancer Database, cN0 patients diagnosed with SCC of the head and neck with the subsites of the hard palate and upper gingiva were identified from 2004 to 2014.
RESULTS
A total of 1830 patients were identified, and END was performed on 422 patients with cN0 tumors. Pathologically positive nodes occurred in 14% (59/422) of patients in this cohort. Higher tumor stage, academic hospital type, and large hospital volume (>28 cancer-specific cases/year) were associated with a higher likelihood of END both in univariate and multivariate analyses (P < .05). Patients >80 years of age were less likely to receive END on multivariate analysis (OR 0.52, 0.32-0.84). No variables, including advanced T stage, predicted occult metastases. Cox proportional hazards regression analysis showed that patients who underwent END demonstrated improved OS over an 11-year period (hazard ratio 0.75, P = .002). On subgroup analysis, this improvement was significant in patients with both stage T1 and T4 tumors.
CONCLUSIONS
Tumor stage, hospital type, and hospital volume were associated with higher rates of END for patients with cN0 hard palate SCC and after controlling for clinical factors, END was associated with improved overall survival.
Topics: Aged; Aged, 80 and over; Carcinoma, Squamous Cell; Databases, Factual; Elective Surgical Procedures; Female; Follow-Up Studies; Gingival Neoplasms; Humans; Male; Maxillary Neoplasms; Middle Aged; Neck Dissection; Neoplasm Staging; Palate, Hard; Retrospective Studies; Survival Rate
PubMed: 31549410
DOI: 10.1002/jso.25706 -
Schweizer Monatsschrift Fur Zahnmedizin... 2011The embryonic head development, including the formation of dental structures, is a complex and delicate process guided by specific genetic programs. Genetic changes and... (Review)
Review
The embryonic head development, including the formation of dental structures, is a complex and delicate process guided by specific genetic programs. Genetic changes and environmental factors can disturb the execution of these programs and result in abnormalities in orofacial and dental structures. Orofacial clefts and hypodontia/ oligodontia are examples of such abnormalities frequently seen in dental clinics. An insight into the mechanisms and genes involved in the formation of orofacial and dental structures has been gradually gained by genetic analysis of families and by the use of experimental vertebrate models such as the mouse and chick models. The development of novel clinical therapies for orofacial and dental pathological conditions depends very much on a detailed knowledge of the molecular and cellular processes that are involved in head formation.
Topics: Animals; Anodontia; Cleft Lip; Cleft Palate; Fibroblast Growth Factors; Hedgehog Proteins; Humans; MSX1 Transcription Factor; Mice; Neural Crest; PAX9 Transcription Factor; Paired Box Transcription Factors; Palate, Hard; Signal Transduction; Skull; Transforming Growth Factor beta; Wnt Proteins
PubMed: 21861247
DOI: No ID Found