BACKGROUND Digital intraoral scanning,although developing rapidly,is rarely used in occlusal reconstruction.To compensate for the technical drawbacks of current occlusal reconstruction techniques,such as time consumpt...BACKGROUND Digital intraoral scanning,although developing rapidly,is rarely used in occlusal reconstruction.To compensate for the technical drawbacks of current occlusal reconstruction techniques,such as time consumption and high technical requirements,digital intraoral scanning can be used in clinics.This report aims to provide a way of selecting the most suitable maxillo-mandibular relationship(MMR)during recovery.CASE SUMMARY A 68-year-old man with severely worn posterior teeth underwent occlusal reconstruction with fixed prosthesis using digital intraoral scanning.A series of digital models in different stages of treatment were obtained,subsequently compared,and selected using digital intraoral scanning together with traditional measurements,such as cone beam computed tomography,joint imaging,and clinical examination.Using digital intraoral scanning,the MMR in different stages of treatment was accurately recorded,which provided feasibility for deciding the best occlusal reconstruction treatment,made the treatment process easier,and improved patient satisfaction.CONCLUSION This case report highlights the clarity,recordability,repeatability,and selectivity of digital intraoral scanning to replicate and transfer the MMR during occlusal reconstruction,expanding new perspectives for its design,fabrication,and postoperative evaluation.展开更多
Victim identification through dental features is one of the main objectives of forensic dentistry.In circumstances where information regarding antemortem dental records is missing,reconstruction of a biological profil...Victim identification through dental features is one of the main objectives of forensic dentistry.In circumstances where information regarding antemortem dental records is missing,reconstruction of a biological profile can be useful as a first step toward personal identification.This reconstructive method provides valuable information,namely regarding the individual’s ancestry,through the detection and degree of expression of dental morphological traits,which may help to restrict the number of candidates for identification.Technological advances allowed the development of alternative methods for dental evaluation,that complement or substitute those already in use in clinical practice.Among these,intraoral three‑dimensional(3D)images are increasingly used in dentistry,as they have a high level of accuracy and are easy to obtain and store.However,a fundamental question regarding forensic dentistry is whether they allow recognition and analysis of dental morphological traits in detail,namely those related to ancestry.In this study,we evaluated 20 teeth morphological features using intraoral 3D imaging from 77 individuals from Northern Portugal.Our results showed that it was possible to identify and classify a large part of the main morphological traits used in the estimation of ancestry.As these 3D images present sufficient morphological detail to be classified,we believe that future applications of this technique can be expected in forensic dentistry.展开更多
文摘BACKGROUND Digital intraoral scanning,although developing rapidly,is rarely used in occlusal reconstruction.To compensate for the technical drawbacks of current occlusal reconstruction techniques,such as time consumption and high technical requirements,digital intraoral scanning can be used in clinics.This report aims to provide a way of selecting the most suitable maxillo-mandibular relationship(MMR)during recovery.CASE SUMMARY A 68-year-old man with severely worn posterior teeth underwent occlusal reconstruction with fixed prosthesis using digital intraoral scanning.A series of digital models in different stages of treatment were obtained,subsequently compared,and selected using digital intraoral scanning together with traditional measurements,such as cone beam computed tomography,joint imaging,and clinical examination.Using digital intraoral scanning,the MMR in different stages of treatment was accurately recorded,which provided feasibility for deciding the best occlusal reconstruction treatment,made the treatment process easier,and improved patient satisfaction.CONCLUSION This case report highlights the clarity,recordability,repeatability,and selectivity of digital intraoral scanning to replicate and transfer the MMR during occlusal reconstruction,expanding new perspectives for its design,fabrication,and postoperative evaluation.
文摘Victim identification through dental features is one of the main objectives of forensic dentistry.In circumstances where information regarding antemortem dental records is missing,reconstruction of a biological profile can be useful as a first step toward personal identification.This reconstructive method provides valuable information,namely regarding the individual’s ancestry,through the detection and degree of expression of dental morphological traits,which may help to restrict the number of candidates for identification.Technological advances allowed the development of alternative methods for dental evaluation,that complement or substitute those already in use in clinical practice.Among these,intraoral three‑dimensional(3D)images are increasingly used in dentistry,as they have a high level of accuracy and are easy to obtain and store.However,a fundamental question regarding forensic dentistry is whether they allow recognition and analysis of dental morphological traits in detail,namely those related to ancestry.In this study,we evaluated 20 teeth morphological features using intraoral 3D imaging from 77 individuals from Northern Portugal.Our results showed that it was possible to identify and classify a large part of the main morphological traits used in the estimation of ancestry.As these 3D images present sufficient morphological detail to be classified,we believe that future applications of this technique can be expected in forensic dentistry.
