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1.
Clin Oral Investig ; 27(9): 5181-5188, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37578656

RESUMO

OBJECTIVE: Zika virus infection has been associated to congenital zika syndrome (CZS) in newborns and is characterized by microcephaly, central/axial motor and sensory dysfunction, dysphagia among other previously described severe health complications. CZS is usually diagnosed postpartum by evident/apparent neural development problems. Although there are some reports of craniofacial/dentition development in CZS, several clinical oral aspects are still unknown. This study describes some structural and functional characteristics of facial and cranial growth and deciduous dentition in CZS-affected children. MATERIAL AND METHODS: Some cranial, facial and dental characteristics were determined in 14 children with CZS aged 3-5 years and compared them against 12 apparently healthy children paired by age and gender. RESULTS: Fourteen CZS cases presented microcephaly, maxillary prognathism, altered facial thirds, asymmetric pupillary line, bruxism (p = 0.006), deep and anterior open bite and distal step decidual molar relationship (p = 0.031). CZS children cannot feed by themselves and most cannot walk and have not develop coordinated and intelligible language according to their chronological age. In contrast, controls presented normal skull features, have autonomous locomotion skills, speak intelligible language, feed by themselves, presented a harmonic intermaxillary relationship and have symmetrical facial thirds. CONCLUSION: Microcephaly, dysphagia, bruxism, mandibular retrognathia, altered facial proportions and malocclusion are the main craniofacial and oral features at CZS. CLINICAL RELEVANCE: The complications of CZS including those related with the face and the oral cavity are still being identified. This study revealed some cranial, facial and oral features in children affected by CSZ. Interdisciplinary rehabilitation protocols must address these syndromic features that could improve children and parents living conditions.


Assuntos
Bruxismo , Transtornos de Deglutição , Microcefalia , Complicações Infecciosas na Gravidez , Infecção por Zika virus , Zika virus , Gravidez , Feminino , Humanos , Recém-Nascido , Criança , Infecção por Zika virus/complicações , Infecção por Zika virus/diagnóstico , Microcefalia/complicações , Microcefalia/diagnóstico , Bruxismo/complicações , Brasil
2.
Niger J Clin Pract ; 25(1): 110-113, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-35046204

RESUMO

INTRODUCTION: LipStaT® lip repositioning surgery using a diode laser for the management of gummy smiles offers promising and consistent long-term results. OBJECTIVE: To describe the technique through a clinical case, including its indications, preoperative evaluation, surgical approach, and recommendations after the intervention. CASE REPORT: A 29-year-old woman with excessive gingival display (EGD) of 4 mm when smiling; the LipStaT® technique was performed with a 940 nm diode laser to remove a strip of mucosa by ablating the epithelial tissue, and thus, achieve aesthetic, harmonic and functional results. The inflammation and postoperative pain were treated with the diode laser assisted lymphatic drainage technique. After follow-up, a satisfactory tissue response was observed, and no pain or inflammation was reported. CONCLUSION: The use of a 940 nm diode laser proved to be an effective treatment option for patients with a gummy smile, allowing control of intraoperative bleeding and improvement of the healing process obtaining predictable long-term results.


Assuntos
Estética Dentária , Lábio , Adulto , Feminino , Gengiva , Gengivectomia , Humanos , Lasers Semicondutores/uso terapêutico , Sorriso
3.
Oral Dis ; 24(3): 393-403, 2018 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-28833998

RESUMO

OBJECTIVE: To estimate the association between sickle cell anaemia and trait with dental and jaw bone abnormalities. SUBJECTS AND METHODS: Subjects (n = 369) were allocated to three groups: sickle cell anaemia, trait and control. Dental shape, number, size and position and changes in pulp chamber, root and periapex were analysed by intra-oral periapical radiographs. Integrity of lamina dura, quality of cancellous bone and bone trabeculation were also evaluated. Prevalence ratios (PR) were calculated (α = 0.05). RESULTS: Sickle cell anaemia had higher prevalence (PR:8.31) and number of teeth (PR:13.40) with external resorption; higher number of teeth with pulp calcification; partial and total loss of lamina dura; and higher prevalence of changes in trabecular structure of maxilla (PR:6.45) and mandible (PR:5.34). Sickle cell trait showed higher prevalence (PR:1.26) and higher number of teeth (PR:1.98) with partial loss of lamina dura; higher number of teeth with hypercementosis, changes in shape, size, periapex, total loss of lamina dura; and higher prevalence of changes in mandibular trabecular bone (PR:1.43). CONCLUSION: Pulp calcification and external resorption of the root were the most frequent dental alterations in sickle cell anaemia group, while in trait was higher frequency of changes in shape, size, periapex and root. Jaw bone changes were most prevalent in both homozygous and heterozygous subjects.


Assuntos
Anemia Falciforme/epidemiologia , Anormalidades Maxilomandibulares/epidemiologia , Anormalidades Dentárias/epidemiologia , Adolescente , Adulto , Criança , Pré-Escolar , Estudos de Coortes , Calcificações da Polpa Dentária/epidemiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Reabsorção da Raiz/epidemiologia , Traço Falciforme/epidemiologia , Adulto Jovem
4.
Lett Appl Microbiol ; 66(2): 104-109, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-29193183

RESUMO

The purpose of this study was to identify and analyse the micro-organisms present in the conjunctival secretion in anophthalmic cavities of wearers of ocular prostheses, as well as on the prostheses used by them, correlating them with the microbiota of the contralateral eye. Nine patients with maxillofacial abnormalities, wearers of an acrylic resin ocular prosthesis participated in the study. Collections of conjunctival secretions and biofilm were performed on the prosthesis, anophthalmic cavity and contralateral eye for the mycological and bacterial analyses. The data were submitted to statistical analysis, performing a Kendall correlation test to identify the correlation between the collection site and the identified micro-organism (P < 0·05). It was verified that the most prevalent micro-organisms were the Staphylococcus aureus and Staphylococcus epidermidis, independent of the collection site, and that negative cultures for fungi were encountered in 85·2% of collections, independent of the region. It was not possible to establish a correlation among the types of micro-organisms and the collection sites. SIGNIFICANCE AND IMPACT OF THE STUDY: Some evidence suggests that the surface roughness of ocular prostheses can influence interactions with micro-organisms, with greater prejudicial consequences, such as the establishment of biofilms, which could lead to infections. Thus, it becomes extremely important to identify the micro-organisms present on the acrylic surfaces of ocular prostheses, as well as the microbiota of the anophthalmic cavity and contralateral eye of wearers of the same, so that subsequent control measures promote the homeostatic maintenance of the ocular region.


Assuntos
Túnica Conjuntiva/microbiologia , Olho Artificial/microbiologia , Staphylococcus aureus/isolamento & purificação , Staphylococcus epidermidis/isolamento & purificação , Adolescente , Adulto , Idoso , Anoftalmia/microbiologia , Biofilmes/crescimento & desenvolvimento , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Anormalidades Maxilofaciais , Microbiota/genética , Pessoa de Meia-Idade , Adulto Jovem
5.
Pol J Radiol ; 83: e11-e18, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30038673

RESUMO

PURPOSE: The aim of this study was to identify the top 50 cited articles on the use of cone-beam computed tomography (CBCT) for oral and maxillofacial applications and to summarise the characteristics of the most impactful research articles in this domain. MATERIAL AND METHODS: A database was generated by combining the search results from Thomson Reuters Web of Science and Elsevier's Scopus to ensure that all top-cited publications were captured. We used three search fields to generate the database: 1) CBCT, 2) oral and maxillofacial pathologies, and 3) oral and maxillofacial anatomical structures. Publications were then ranked by citation counts and reviewed by two independent reviewers. RESULTS: A total of 50 top publications were included in the study. Their citation count ranged from 43 to 170 with a median of 55.5. Five publications were cited more than 100 times. All except for one paper were published after 2000. The most well published journal was the American Journal of Orthodontics and Dentofacial Orthopedics (n = 12), and the United States of America (n = 15) was the most productive country in the field. The majority of the studies (n = 27) discussed the imaging of primary tooth pathologies, but there are also a significant number of articles that discuss imaging of bone grafts or dental implants (n = 7), upper airways (n = 5), the skull (n = 4), and other maxillofacial structures (n = 7). CONLCUSIONS: Our study identifies 50 research articles with the highest number of citations in oral and maxillofacial CBCT, discusses the characteristics and commonalities between these articles, and predicts future trends in the field.

6.
J Oral Rehabil ; 43(5): 348-55, 2016 May.
Artigo em Inglês | MEDLINE | ID: mdl-26751817

RESUMO

UNLABELLED: Abnormalities of swallowing in patients with mandibular prognathism have not been evaluated quantitatively. The aim of this study was to compare tongue pressure production for bolus transfer between volunteers with normal occlusion and patients with mandibular prognathism. The control group had 10 female volunteers with normal occlusion, and the patient group had 10 women with mandibular prognathism. Tongue pressure was measured by a palatal sensor sheet at five sites on swallowing 4 mL of a tasteless and odourless jelly. RESULTS: The tongue pressure waveform differed between the control and patient groups. The incidence of a double-peak tongue pressure waveform was more frequent in the patient group. In both groups, the exertion of tongue pressure began at the anterior point of the sensor sheet, followed by the peripheral parts. Although the order of expression of tongue pressure was the same for the two groups, maximum tongue pressure at all parts of the sensor sheet was lower in the patient group than in the control group. Furthermore, swallowing time was longer in the patient group than in the control group at the peripheral parts of the palate. These results clearly show the difference in tongue pressure production during swallowing between patients with mandibular prognathism and volunteers with normal occlusion. The current findings suggest that maxillofacial morphology may affect tongue movement during swallowing.


Assuntos
Deglutição , Prognatismo/fisiopatologia , Língua/fisiopatologia , Adolescente , Feminino , Alimentos , Humanos , Palato/anatomia & histologia , Pressão , Processamento de Sinais Assistido por Computador , Transdutores de Pressão , Adulto Jovem
7.
Int Tinnitus J ; 20(1): 31-5, 2016 Jul 22.
Artigo em Inglês | MEDLINE | ID: mdl-27488991

RESUMO

BACKGROUND: Treacher Collins syndrome (TCS) is a rare disorder with different levels of severity due to congenital head and face abnormalities which affect language, orofacial musculature, voice and breadth, suction, chewing and swallowing functions. AIMS: This paper objectifies to report a Treacher Collins syndrome patient, describing phonoaudiological changes that can be found in individuals suffering from this syndrome. METHODS & PROCEDURES: The study was carried out with a male child at a teaching Speech Language Pathology clinic in Southern Brazil. The patient underwent audiological assessment, as well as orofacial motricity, swallowing, voice and speech assessments. OUTCOMES & RESULTS: By means of the assessments, it was possible to perceive that the patient presents moderate hearing loss, inadequacy of phonoarticulatory organs, base of the tongue going backwards and epiglottis collapse over the larynx. In spite of evidencing significant difficulty in producing speech sounds, due to musculoskeletal changes, he effectively interacts in communicative situations, besides understanding sentences and narrated stories. CONCLUSIONS & IMPLICATIONS: The screened case report evidences that an interdisciplinary follow-up is indispensable for this patient suffering from Treacher Collins syndrome, which implies not only speech language therapeutic follow-up, but also in ear, nose and throat and orthodontics areas.


Assuntos
Transtornos da Linguagem/etiologia , Disostose Mandibulofacial/complicações , Distúrbios da Fala/etiologia , Brasil , Criança , Humanos , Transtornos da Linguagem/diagnóstico , Masculino , Disostose Mandibulofacial/terapia , Distúrbios da Fala/diagnóstico , Patologia da Fala e Linguagem , Síndrome
8.
Imaging Sci Dent ; 54(1): 13-24, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38571780

RESUMO

Purpose: Pycnodysostosis (PYCD), an autosomal recessive syndrome, is characterized by an imbalance in bone remodeling that produces various clinical and radiographic craniofacial manifestations. This review represents a systematic examination of these manifestations, as well as oral features associated with PYCD. Materials and Methods: A systematic review was conducted across 8 databases from February to March 2023. The search strategy focused on studies reporting cases of PYCD that examined the clinical and radiographic craniofacial and oral characteristics associated with this syndrome. Results: The review included 84 studies, encompassing a total of 179 cases of PYCD. More than half of the patients were female (55.3%), and the mean age was 14.7 years. Parental consanguinity was reported in 51.4% of the cases. The most common craniofacial clinical manifestation was a prominent nose, observed in 57.5% of cases. Radiographically, the most frequently reported craniofacial characteristics included the presence of an obtuse mandibular angle (84.3%) and frontal cranial bosses (82.1%). Clinical and radiographic examinations revealed oral alterations, with micrognathia present in 62.6% of patients and malocclusion in 59.2%. Among dental anomalies, tooth agenesis was the most commonly reported, affecting 15.6% of patients. Conclusion: Understanding the clinical and radiographic craniofacial features of PYCD is crucial for dental professionals. This knowledge enables these clinicians to devise effective treatment plans and improve patient quality of life.

9.
J Stomatol Oral Maxillofac Surg ; 125(1): 101642, 2024 02.
Artigo em Inglês | MEDLINE | ID: mdl-37739222

RESUMO

OBJECTIVE: Bilateral sagittal split ramus osteotomy (BSSRO) and bimaxillary osteotomies (BSSRO plus Lefort1 osteotomy) are widely used to solve maxillofacial deformities. The effect of the surgeries on the temporomandibular joint (TMJ) is still not clear. The purpose of this study was to investigate the preoperative and postoperative stress environment of the patients and to compare the biomechanical differences of the two surgeries. METHODS: Ten patients were performed BSSRO and fourteen underwent bimaxillary osteotomies. Eleven asymptomatic subjects were recruited to be the control group. The muscle forces of incisal clenching were applied on the finite element models. And contact was used to simulate the interactions within the TMJs. RESULTS: two kinds of surgeries could not completely eliminate the negative biomechanical distribution within the TMJs. CONCLUSION: Compared to BSSRO only, the bimaxillary osteotomies could better repair the biomechanical environment of the TMJs under incisal clenching. And the TMD symptoms were strongly related to the stress distributions of the TMJs.


Assuntos
Mandíbula , Osteotomia Sagital do Ramo Mandibular , Humanos , Osteotomia Sagital do Ramo Mandibular/efeitos adversos , Mandíbula/cirurgia , Articulação Temporomandibular/cirurgia , Fenômenos Mecânicos
10.
Int J Oral Maxillofac Surg ; 53(8): 661-671, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38395686

RESUMO

Congenital infiltrating lipomatosis of the face (CILF) is a rare congenital disease of the head and neck region. In this study, the cases of 20 patients diagnosed with CILF were reviewed retrospectively to analyse the characteristics of the disease. The symptoms, signs, and clinical progression were investigated. Radiological changes were analysed according to the distribution of the trigeminal nerve. The pathological features of the fatty facial lesions, jaw hyperplasia, and lingual lesions were further identified. All 20 patients demonstrated hemifacial hypertrophy at birth. None had a family history of the disease. Significant radiological features of CILF (prevalence ≥90%) included thickened buccal subcutaneous fat, palatal submucosal fat, and temporal subcutaneous fat, maxillary tuberosity heteroplasia, and fatty infiltration of the masseteric intermuscular space. With regard to the trigeminal nerve, the frontal branch region (CNV1) was rarely affected, while the maxillary (CNV2) and mandibular (CNV3) branch regions showed considerable changes. Pathologically, CILF was observed to be characterized by the infiltration of mature adipose tissue into the adjacent buccal soft tissue, osteal remodelling surrounded by sheets of mature lipocytes and supporting fibrovascular stroma, and lingual hamartoma. In summary, CILF exhibits distinct characteristics that are related to the regions controlled by the maxillary and mandibular branches of the trigeminal nerve, suggesting that CILF may be associated with early neural development.


Assuntos
Lipomatose , Humanos , Feminino , Masculino , Estudos Retrospectivos , Lipomatose/diagnóstico por imagem , Lipomatose/patologia , Lipomatose/congênito , Criança , Adolescente , Face/patologia , Face/anormalidades , Face/diagnóstico por imagem , Pré-Escolar , Tomografia Computadorizada por Raios X , Adulto , Lactente
11.
Natl J Maxillofac Surg ; 15(2): 313-315, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39234126

RESUMO

Angiosarcomas are rare, accounting for only 1-2% of sarcomas in the head and neck region. We present an extremely rare case of primary non-radiation-induced angiosarcoma of the parotid with epithelioid morphology which required a tertiary center second opinion for its histological characteristics. We discuss the presentation, imaging, diagnosis, characteristics, and pathway of this case. As parotid lumps are common, a surgical sieve is required to rule out other possible conditions. Early correct diagnosis is crucial in conditions such as angiosarcomas due to their quick metastatic potential.

12.
Nutrition ; 123: 112418, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38569254

RESUMO

OBJECTIVE: Orthognathic surgery is a complex orofacial surgery that can significantly impact occlusal function and effect nutritional and quality of life parameters. This study aimed to evaluate alterations in dietary intake, chewing function, physical activity, and oral health-related quality of life of patients undergoing orthognathic surgery. RESEARCH METHODS AND PROCEDURES: In this prospective longitudinal study, the assessments were conducted at: preoperatively (T0) and postoperative first week (T1), second week (T2), first month (T3), and third month (T4) between May 2021 and March 2023. Sociodemographic questionnaire, 24-h dietary recall record, chewing ability form, International Physical Activity Questionnaire, and Oral Health Impact Profile-14 (OHIP-14) was applied at face-to-face interviews. RESULTS: Seventy eligible orthognathic surgery patients were evaluated, and 37 patients (52.8%) completed this study. Energy and fat intake significantly decreased from T0 to T1 (P < 0.001) and returned to basis by T4 (P = 0.015). Fiber intake was found to be lowest at T1 and T2 compared with other time points (P < 0.001). Chewing ability showed a deterioration and then improvement; however, patients still had difficulties chewing hard foods at T4. The OHIP-14 increased at T2 and T3 from T0 (P < 0.001 and P = 0.021, respectively) and showed a significant improvement at T4 (P < 0.05). CONCLUSION: The findings indicate a temporary decline in nutritional intake and chewing ability with subsequent recovery by the third month postsurgery. These changes, along with the trends in oral health-related quality of life, underscore the need for tailored nutritional and functional rehabilitation programs following orthognathic surgery.


Assuntos
Mastigação , Estado Nutricional , Saúde Bucal , Procedimentos Cirúrgicos Ortognáticos , Qualidade de Vida , Humanos , Feminino , Masculino , Saúde Bucal/estatística & dados numéricos , Estudos Prospectivos , Estudos Longitudinais , Mastigação/fisiologia , Adulto , Adulto Jovem , Período Pós-Operatório , Inquéritos e Questionários , Período Pré-Operatório , Dieta/estatística & dados numéricos , Dieta/métodos , Exercício Físico , Adolescente
13.
Heliyon ; 10(8): e29185, 2024 Apr 30.
Artigo em Inglês | MEDLINE | ID: mdl-38638944

RESUMO

Objective: Cleft lip and palate is the most common craniofacial birth anomaly and requires surgery in the first year of life. However, craniofacial surgery training opportunities are limited. The aim of this study was to present and evaluate an open-source cleft lip and palate hybrid (casting and three-dimensional (3D) printing) simulation model which can be replicated at low cost to facilitate the teaching and training of cleft surgery anatomy and techniques. Design: The soft tissue component of the cleft surgery training model was casted using a 3D printed 5-component mold and silicone. The bony structure was designed to simulate the facial anatomy and to hold the silicone soft tissue. Setting: Two groups, one group of trainees and one group of expert surgeons, at University Hospital Basel in Switzerland and Pontifical Catholic University of Chile in Santiago, Chile, tested the cleft lip and palate simulation model. Participants completed a Likert-based face and content validity questionnaire to assess the realism of the model and its usefulness in surgical training. Results: More than 70 % of the participants agreed that the model accurately simulated human tissues found in patients with unilateral cleft lip and palate. Over 60 % of the participants also agreed that the model realistically replicated surgical procedures. In addition, 80-90 % of the participants found the model to be a useful and appropriate tool for teaching the anatomy and surgical techniques involved in performing unilateral cleft lip and palate repair. Conclusion: This open-source protocol provides a cost-effective solution for surgeons to introduce the cleft morphology and surgical techniques to trainees on a regular basis. It addresses the current financial barrier that limits access to commercially available models during the early stages of surgeon training prior to specialization in the field.

14.
J Dent Educ ; 87(5): 702-710, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-36642940

RESUMO

OBJECTIVES: The purpose of this study was to assess the efficacy of a smartphone application for instruction of radiographic differential diagnosis of maxillofacial bony lesions as an aid to enhance to traditional learning (lecture-based learning) for dental students. METHODS: This quasi-experimental study evaluated 50 fifth-year dental students who were randomly divided into two groups. The two groups were matched in terms of grade point average to ensure their equal baseline knowledge level. The experimental group (n = 25) received instructions regarding differential diagnosis of maxillofacial bony lesions via a self-designed smartphone application, while the control group (n = 25) received lecture-based instruction of the same topic. The students participated in a written exam (10 questions) immediately and 2 months after the interventions. Each question had 3 differential diagnosis choices. The best answer choice was allocated a score of 0.5, while other answer choices were allocated a score of 0.25. Data were analyzed using repeated measures ANOVA, and Mann-Whitney U and Wilcoxon tests. RESULTS: The mean score of the experimental group was significantly higher than that of the control group immediately after the intervention (p < 0.001) and also at 2 months (p < 0.001). The mixed effect linear model revealed that after controlling for the effect of age and sex, the mean score of the experimental group was still significantly higher than that of the control group immediately and at 2 months after the intervention (p < 0.001). CONCLUSIONS: Smartphone-based mobile learning can effectively enhance the knowledge and practical skills of dental students in differential diagnosis of maxillofacial bony lesions as an aid to enhance to traditional learning.


Assuntos
Aplicativos Móveis , Smartphone , Humanos , Diagnóstico Diferencial , Aprendizagem , Estudantes de Odontologia
15.
Int J Oral Maxillofac Surg ; 52(3): 343-352, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-35999147

RESUMO

The aim of this study was to compare the effects of maxillomandibular advancement (MMA) on respiratory function between obstructive sleep apnoea (OSA) patients with and without maxillomandibular deficiency, and to compare the changes in facial aesthetics after MMA between the two groups. MMA-treated patients who had both baseline and follow-up polysomnography (PSG) data and lateral cephalograms were enrolled in this retrospective study. In addition to PSG and cephalometric data, patient satisfaction with postoperative breathing and facial aesthetics, and overall satisfaction with the treatment were assessed. Twenty-one patients were classified as not having maxillomandibular deficiency (without-deficiency group) and 40 patients as having maxillomandibular deficiency (with-deficiency group). The improvements in respiratory parameters (e.g., apnoea-hypopnoea index) and patient satisfaction with postoperative breathing were comparable in the two groups (P = 0.094-0.713). The changes in facial profile measurements (e.g., nasal prominence, nasolabial angel, and lip positions relative to the true vertical line) and patient satisfaction with postoperative facial aesthetics were also comparable in the two groups (P = 0.148-0.983). In conclusion, no significant difference in the effects of MMA on respiratory function and facial aesthetics between OSA patients with and without maxillomandibular deficiency was observed.


Assuntos
Avanço Mandibular , Apneia Obstrutiva do Sono , Humanos , Maxila/cirurgia , Estudos Retrospectivos , Resultado do Tratamento , Apneia Obstrutiva do Sono/cirurgia , Estética
16.
Cureus ; 15(8): e43583, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37719493

RESUMO

The current advances in digitized data additions, machine learning and computing framework, lead to the swiftly emerging concept of "Artificial Intelligence" (AI), that are developing into areas that were formerly contemplated for human expertise. AI is a relatively rapid paced mechanics wherein the computer technology is tuned to perform human tasks. An auxiliary domain of AI is machine learning (ML), and Deep learning, a subclass of ML technique comprehends multi-layer mathematical operations. AI-based applications have tremendous potential to improve and systematize patient care thereby alleviating dentists from laborious regular tasks, and facilitate personalized, predictive and preventive dentistry. In the dental clinic, AI can execute a variety of easy tasks with greater accuracy, minimal manpower, and with fewer mistakes over human equivalents. These tasks range from appointment scheduling and coordination to helping with clinical evaluation and therapy. Besides, this could assist in the early diagnosis of dental and maxillofacial abnormalities like periodontal ailments, root caries, bony lesions, and facial malformations in addition to automatically identifying and classifying dental restorations on digital radiographs. This brusque narrative review describes the AI-based systems, their respective applications in periodontal diagnosis, the multifarious studies, possible limitations and the predictable future of AI-based dental diagnostics and treatment planning.

17.
Int J Oral Maxillofac Surg ; 52(4): 460-467, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35909027

RESUMO

Dentoskeletal changes in minimally invasive surgically assisted rapid palatal expansion (SARPE) were evaluated using cone beam computed tomography (CBCT). This was a prospective study of 30 patients who underwent minimally invasive SARPE performed under local anaesthesia plus sedation by the same surgeon, in an ambulatory setting. Pre- and postoperative CBCT images were obtained for each patient. A statistically significant increase in the linear transverse dimensions of the maxilla occurred systematically. In the canine region, a mean increase of 5.84 mm occurred at the apex level and 7.82 mm at the crown level. These dimensions were 4.83 mm and 7.68 mm, respectively, in the molar region. The cross-sectional area of the maxilla increased by a mean 12.9 mm2 at the palate level and 23.3 mm2 at the crown level. Dental inclination to the buccal aspect was detected (mean 6.1° at the canines and 8.4° at the first molars). The alveolar process tipped buccally 10° at the molar level. Nasal width increased a mean of 3.0 mm at the canine level. Through a three-dimensional analysis, this study found that minimally invasive SARPE was effective in the correction of transverse maxillary discrepancies> 5 mm in non-growing patients. Although dental inclination to the buccal aspect occurred, significant expansion of the maxilla at the skeletal and dentoalveolar levels was confirmed.


Assuntos
Técnica de Expansão Palatina , Dente , Estudos Prospectivos , Palato , Maxila/cirurgia , Tomografia Computadorizada de Feixe Cônico/métodos
18.
Imaging Sci Dent ; 52(2): 165-170, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35799968

RESUMO

Purpose: This report presents a case of an unusual and rare presentation of Stafne bone defect (SBD) with apical resorption extending from the lower right lateral incisor to the right first premolar. A systematic search of the current literature on cases where SBD affected the adjacent teeth was conducted. Materials and Methods: From 259 identified articles, 114 studies were examined, containing 12 individuals with a mean age of 41.58 years. Ten cases in the anterior mandible and 2 in the posterior mandible were found. Results: The results of SBD varied from apical blunting to severe root resorption, and some cases showed close apical contact with the lesion or involvement of the root without any effect. Conclusion: SBD is an unusual incidental finding in the anterior region of the mandible, and unexpected behavior of the lesion, such as root resorption, must be considered.

19.
J Clin Med ; 11(10)2022 May 23.
Artigo em Inglês | MEDLINE | ID: mdl-35629067

RESUMO

Different surgical techniques are available to adequately correct the primary cleft lip deformity; however, when compared, none of these techniques have proven superior with regard to achieving optimal aesthetic results. Thus, the aim of this retrospective study was to assess the nasolabial appearance in patients with unilateral cleft lip and palate (UCLP) at age five with reference to two techniques for primary cleft lip repair used in our service: Pfeifer's wave-line procedure and Randall's technique. A modified Asher-McDade Aesthetic Index was applied to appraise the nasolabial area by means of 2D photographs of non-syndromic five-year-old patients with a UCLP. In this context, three parameters were assessed: 1. nasal frontal view; 2. shape of the vermilion border and philtrum length; and 3. the nasolabial profile. Five professionals experienced in cleft care were asked to rate the photographs on two occasions. Overall, 53 patients were included in the final analysis, 28 of whom underwent lip repair according to Pfeifer; 25 were treated employing Randall's technique. Statistically significant differences between the two techniques regarding philtrum length and vermilion border were found (p = 0.046). With reference to the other parameters assessed, no significant differences were determined. The results suggest that Randall's cleft lip repair may allow for more accurate alignment of the vermilion border and more adequate correction of the cleft lip length discrepancy in comparison to Pfeifer's wave-line technique.

20.
World J Clin Cases ; 10(25): 8980-8989, 2022 Sep 06.
Artigo em Inglês | MEDLINE | ID: mdl-36157638

RESUMO

BACKGROUND: Maxillofacial deformities are skeletal discrepancies that cause occlusal, functional, and esthetic problems, and are managed by multi-disciplinary treatment, including careful orthodontic, surgical, and periodontal evaluations. However, thin periodontal phenotype is often overlooked although it affects the therapeutic outcome. Gingival augmentation and periodontal accelerated osteogenic orthodontics (PAOO) can effectively modify the periodontal phenotype and improve treatment outcome. We describe the multi-disciplinary approaches used to manage a case of skeletal Class III malocclusion and facial asymmetry, with thin periodontal phenotype limiting the correction of deformity. CASE SUMMARY: A patient with facial asymmetry and weakness in chewing had been treated with orthodontic camouflage, but the treatment outcome was not satisfactory. After examination, gingiva augmentation and PAOO were performed to increase the volume of both the gingiva and the alveolar bone to allow further tooth movement. After orthodontic decompensation, double-jaw surgery was performed to reposition the maxilla-mandibular complex. Finally, implant placement and chin molding were performed to restore the dentition and to improve the skeletal profile. The appearance and function were significantly improved, and the periodontal tissue remained healthy and stable. CONCLUSION: In patients with dentofacial deformities and a thin periodontal phenotype, multi-disciplinary treatment that includes PAOO could be effective, and could improve both the quality and safety of orthodontic-orthognathic therapy.

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