Enrique Platin

• Professor at University of North Carolina Adams School of Dentistry

BACKGROUND The implementation of preventive strategies has aided in the noticeable decline of caries prevalence in developed countries. With the reduction of caries prevalence, there is a higher demand for more sensitive and accurate caries detection modalities. In this study we explore the utility of stationary intraoral tomosynthesis (sIOT) in oc...

Background There is substantial evidence for a cumulative dose-related response to ionizing radiation in the form of cancer development years after initial exposure. Therefore, this study focused on effective dose (E), a quantity with direct correlations to biologic risk from dental x-ray exposures. Objectives The purpose of this study was to meas...

Background There is substantial evidence for a cumulative dose-related response to ionizing radiation in the form of cancer development years after initial exposure. Therefore, this study focused on effective dose, a quantity with direct correlations to biologic risk from dental x-ray exposures. Objective The purpose of this study was to measure d...

Objectives A practical approach to three-dimensional (3D) intraoral imaging would have many potential applications in clinical dentistry. Stationary intraoral tomosynthesis (sIOT) is an experimental 3D imaging technology that holds promise. The purpose of this study was to explore synthetic radiography as a tool to improve the clinical utility of t...

Objectives. A practical approach to three-dimensional (3D) intraoral imaging would have many potential applications in clinical dentistry. Stationary intraoral tomosynthesis (sIOT) is an experimental 3D imaging technology that holds promise. The purpose of this study was to explore synthetic radiography as a tool to improve the clinical utility of...

Objectives This study assessed effective doses from conventional and stationary intraoral tomosynthesis (s-IOT) radiography for posterior bitewing (PBW) examinations and evaluated the effect of sensor attenuation. Study Design An adult human tissue equivalent phantom and optically stimulated luminescent dosimeters were used. Series of 4 PBW were a...

Objective This study examined the utility of stationary intraoral tomosynthesis (s-IOT) in opening proximal contacts in bitewing radiography. Methods Eleven DENTSPLY Rinn Dental X-ray Teaching and Training Replica (DXTTR) mannequins (Model #546002, Elgin, Ill) were imaged with a prototype s-IOT device (XinVivo, Inc., RTP, NC) and standard bitewing...

Background The first generation stationary intraoral tomosynthesis (sIOT) device, developed at University of North Carolina (UNC), provides 3-D information in intraoral imaging with a speed and dose comparable with those of traditional intraoral radiography. Initial research shows promise in several diagnostic tasks, including caries and fracture d...

Purpose: Technological advancements in dental radiography have improved oral care on many fronts, yet diagnostic efficacy for some of the most common oral conditions, such as caries, dental cracks and fractures, and periodontal disease, remains relatively low. Driven by the clinical need for a better diagnostic yield for these and other dental con...

Purpose: Dental hygiene educators often provide inconsistent instruction in clinical settings and various attempts to address the lack of consistency have been reported in the literature. The purpose of this pilot study was to determine if the use of a use of a self-instructional, radiographic anatomy (SIRA) module improved DH faculty calibration r...

Ostosclerosis is a unique autosomal dominant focal osteodystrophic disease specific to the otic capsule causing stapedial fixation and conductive hearing loss. Currently, radiology plays a crucial role in its diagnosis with Cone Beam Computed Tomography (CBCT) emerging as a powerful tool in the field of otolaryngology. CBCT is a three dimensional t...

Ostosclerosis is a unique autosomal dominant focal osteodystrophic disease specific to the otic capsule causing stapedial fixation and conductive hearing loss. Currently, radiology plays a crucial role in its diagnosis with Cone Beam Computed Tomography (CBCT) emerging as a powerful tool in the field of otolaryngology. CBCT is a three dimensional t...

Ostosclerosis is a unique autosomal dominant focal osteodystrophic disease specific to the otic capsule causing stapedial fixation and conductive hearing loss. Currently, radiology plays a crucial role in its diagnosis with Cone Beam Computed Tomography (CBCT) emerging as a powerful tool in the field of otolaryngology. CBCT is a three dimensional t...

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We report on a patient who presented to the ENT service with right side nasal obstruction. Imaging studies revealed an aggressive non-calcified solid heterogeneous mass centered in the right naso ethmoidal region. The mass was hyper enhanced following contrast media administration. The patient underwent partial tumor resection and a biopsy was perf...

Up to 40 % of cases of non-Hodgkin’s lymphomas (NHL) occur with exclusive extranodal presentation, and involvement of the oral cavity is very rare. We report the case of a 40-year-old woman who presented with a gingival mass that was diagnosed as diffuse large B‑cell lymphoma (DLBCL). The patient was treated with chemoradiotherapy, thus, achieving...

We report on a patient who presented to the ear, nose, and throat (ENT) clinic with swelling on the right side of the neck. Imaging studies revealed a large expansive heterogeneous process encroaching on the parapharyngeal region. Postintravenous contrast administration revealed an ovoid mass with moderate enhancement without affecting the parotid...

We report on a patient who presented to the ear, nose, and throat (ENT) clinic with a large lesion on the left side of the face. Imaging studies revealed a large heterogeneous expansive mass in the left gonial region infiltrating the skin. The lesion was highly enhanced following intravenous contrast injection

Purpose: Technological advances in intra-oral receptors have resulted in film-holding devices that may or may not be interchangeable with photostimulable phosphor receptors. This study evaluated the number and types of technique errors that occurred when using PSP receptors with a standard film-holding device and a dual PSP/film-designed device....

We report the case of a patient who was presented to the Ear, Nose and Throat (ENT) clinic with swelling of the left upper maxillary region. Diagnostic imaging studies revealed an aggressive heterogeneous hyper enhanced solid mass following contrast media administration. A biopsy of the area confirmed the presence of High-grade Osteosarcoma. Subseq...

We present the case of a 51‑year‑old patient with sinonasal adenoid cystic carcinoma (SACC). Computed tomography (CT) and magnetic resonance imaging (MRI) exams revealed an expansive process in the right nostril accompanied with perineural spread and invasion to the floor of the middle cranial fossa. Due to the size of the tumor and brain involveme...

We report on a patient who presented to the ENT service with swelling of the right side of the parotid gland. The swelling had been present for four years. Imaging studies revealed an expansive process confined to the superficial right parotid lobule. The affected area was well delineated with irregular enhancement post intravenous contrast media a...

This is a case report of a 62‑year‑old male who presented to the Ear, Nose, and Throat clinic for a follow‑up exam for hearing loss stemming from a fall from a horse in his infancy. A Cone Beam Computed Tomography (CBCT) examination revealed an intrapetrous communication between the internal jugular vein bulb and the superior petrosal sinus. Three‑...

We report on a patient who presented with pain and swelling to the left maxillary region of the face. A biopsy of the area was performed and subsequently diagnosed as maxillary carcinosarcoma (CCS). After reviewing the pathology results and the size of the tumor, it was decided that a radical dissection, followed by radiation therapy was the best o...

The purpose of this study was to compare the number and type of technical errors between 2 rectangular collimators, time/motion effort and radiographer preference. Subjects (n=17) were recruited to expose an 18 projection full mouth series (FMX) using Tru-Align™ (enhanced) and Rinn® (universal) collimator devices. Both FMXs were exposed using photo...

Intraoral dental tomosynthesis and closely-related Tuned Aperture Computed Tomography (TACT) are low-dose 3D imaging modalities that have shown improved detection of multiple dental diseases. Clinical interest in implementing these technologies waned due to their time-consuming nature. Recently developed carbon nanotube (CNT) x-ray sources allow ra...

Esthesioneuroblastoma (ENB) is a rare tumor of the olfactory epithelium that has been shown to metastasize mostly to the lymph nodes of the neck but more rarely to other locations. We report on a rare case characterized by distant metastasis to the neck and lung.

We report on a patient who was referred to the ENT service following an incidental finding on an MRI scan of the brain. It revealed a mass in the right parapharyngeal space, and additional imaging confirmed the presence of a solid cystic expansive mass with moderate enhancement following contrast media injection. The patient was treated with a tota...

We report the case of a patient whose main complaint was swelling on the right side of the mandible when he presented to the Ear, Nose and Throat (ENT) Service. Imaging studies revealed a large homogeneous, multilocular, expansive lesion in the body of the right mandibular ramus. The lesion was poorly enhanced following intravenous contrast injecti...

We report on a patient who presented to the Ear, Nose and Throat (ENT) clinic with swelling of the neck, dysphagia, headache, dyspnea and stridor. Imaging studies revealed an expansive heterogeneous process to the left retropharyngeal region. The mass was ovoid in shape, displaying moderate enhancement after intravenous contrast administration. Sub...

Superior semicircular canal dehiscence is a relatively new syndrome in the field of otology. It is of unknown etiology presenting with a variety of vestibular and auditory symptoms and radiologic findings play a crucial role in its diagnosis. Cone beam computed tomography has been shown to be a powerful tool in the field of otolaryngology. It is a...

The 2007 modification by the International Commission on Radiation Protection of the calculation of effective dose from ionizing radiation has renewed interest in the concept of As Low As Reasonably Achievable exposure, and the technical approaches for reducing doses. This intraoral imaging study compared effective doses from circular and rectangul...

We report the case of a patient who presented to the ENT service with left facial swelling of 5 months duration. Imaging studies revealed a dense expansive mass confined to the inside of the left deep parotid lobule and moderate enhancement following contrast media injection. Subsequently, a biopsy confirmed the presence of an oncocytoma. The patie...

We report on a two year old female patient who presented with expansion to the left side of the ramus and body of the mandibule. Imaging studies revealed a lesion with characteristics suggestive of vascular origin. Histopathological analysis determined the presence of an intraosseous Hemangioma. Embolization guided angiography of the left external...

We report on a patient who presented to ENT services with right side epistaxis, frontal lobe headache, right infraorbital pain and the feeling of having a stuffy nose. CT and MRI were performed and later a biopsy confirmed the presence of sinonasal plasmocytoma. The Head and Neck oncology committee recommended radiotherapy as the choice of treatmen...

We report on a patient who presented with cranial nerve VI bilateral paresis, absence of pharyngeal reflex, dysarthria, right tongue deviation, and right facial paralysis. Imaging studies showed an expansive process in the cranial base with clivus and petrous apex osteolysis. A biopsy confirmed the presence of clear cell adenocarcinoma and suspicio...

Producing diagnostic images and reducing patient dose are primary goals in radiology. Objectives: The purpose of this study was to compare the number and type of technical errors between two rectangular collimators (IDI Tru-Align™ rectangular collimator (Test) and Rinn®universal rectangular collimator insert (Standard), time /motion effort, and r...

TRUJILLO, I.; NOVOA, S. & ULLOA, D. Intraosseous hemangioma of the mandible: case report and review of the literature. Int. J. Odontostomat., 7(3):395-400, 2013. ABSTRACT: We report on a two year old female patient who presented with expansion to the left side of the ramus and body of the mandibule. Imaging studies revealed a lesion with characteri...

Technological advances in radiographic intra-oral receptors have promoted the development of new receptor-holding devices. Since receptors have varying dimensions, film-holding devices may not be interchangeable with photostimulable phosphor (PSP) receptors. Objective: The purpose of this study was to determine the number and types of technique e...

Objectives: The purpose of this study was to compare the number and types of technique errors and diagnostic quality of radiographs exposed using the XCP®(standard), XCP-ORA™ (modified), and XCP®/JADRAD™Dental X-ray shield system (standard/shield). Methods: Senior dental hygiene students (n=29) exposed up to three patient intraoral full mouth ser...

Objectives: To compare operator and patient dosimetry during Full Mouth Survey (FMX) between the Nomad Pro® (Aribex, Orem, UT) handheld device and the Planmeca Intra® (Planmeca USA Inc., Roselle, IL) wall-mounted x-ray source. Methods: One operator exposed 180 projections simulating 10 Full Mouth Series (FMX) per study on a RANDO phantom (The Pha...

Maxillary cuniculatum carcinoma: a case report and literature review. Int. J. Odontostomat., 6(3):281-284, 2012. ABSTRACT: We report on a patient who presented to our clinic with a volume increase and pain at left maxillary region. A biopsy of the area was performed and the lesion was diagnosed as differentiated squamous cell carcinoma of the type...

We report on a patient who presented to our clinic with a volume increase and pain at left maxillary region. A biopsy of the area was performed and the lesion was diagnosed as differentiated squamous cell carcinoma of the type cuniculatum. Due to the size of the tumor and compromise of vital intracraneal structures it was decided to perform surgica...

We report on a patient who presented to our clinic with a one-year history of diplopia in the left eye, epistaxis for one month and pain in the occipital area of the head. A biopsy of the area was performed and the lesion was diagnosed as Esthesioneuroblastoma also known olfactory neuroblastoma. Due to the size of the tumor and involvement of the v...

We report on a patient who presented at our clinic with a growth of the right palate of twenty years duration. A biopsy of the area was performed and the lesion was diagnosed as low-grade mucoepidermoid carcinoma (MEC). Due to the size of the tumor, it was decided to begin treatment with radiotherapy followed by chemotherapy. Once the initial treat...

To test the null hypothesis of no difference in caries detection in dim, bright, and hooded environments for laptop viewing of intraoral radiographs. Extracted posterior teeth were imaged with posterior bite wing geometry by using storage phosphor plates. Images were displayed on a laptop computer placed in 3 lighting environments. Six dental stude...

To study the effect of lossy image compression on caries detection. Null hypothesis states no difference in caries detection efficacy among observers using original digital images versus images compressed at various rates of compression. Digital images of 41 extracted posterior teeth were obtained with a storage phosphor DenOptix (Gendex DenOptix I...

The purpose of this study was to determine if there was a significant difference in the diagnostic quality of the initial full-mouth series (FMS) exposed by first-year dental students after viewing a Computer Assisted Instruction (CAI) module on radiographic technique as compared to those who did not and to determine if students who used the CAI mo...

The purpose of this study was to determine if there was a significant difference in the diagnostic quality of the initial full-mouth series (FMS) exposed by first-year dental students after viewing a Computer Assisted Instruction (CAI) module on radiographic technique as compared to those who did not and to determine if students who used the CAI mo...

The purpose of this study was to compare dental hygiene student radiographic performance using film and charge-coupled device (CCD) systems. Specific objectives were to compare the 1) number of technique errors, 2) error type, 3) retake frequency, and 4) learning experience using both systems. Twenty-eight subjects exposed two 18-projection full se...

Radiographs are an important adjunct to providing oral health care for the total patient. Historically, radiographic images have been produced using film-based systems. However, in recent years, with the arrival of new technologies, many practitioners have begun to incorporate digital radiographic imaging into their practices. Since dental hygienis...

This study reports film speed, contrast, exposure latitude, resolution, and response to processing solution depletion of Kodak Insight intraoral film. Densitometric curves were generated by using International Standards Organization protocol. Additional curves were generated for Ultra-speed, Ektaspeed Plus, and Insight films developed in progressiv...

Self-guided slide/tape (ST) and web page (WP) instruction in normal radiographic anatomy of periapical and panoramic images is compared using objective test performance and subjective preference of freshman dental students. A class of seventy-four students was divided into a group studying anatomy in periapical images using WP and a group studying...

This updated self-assessment exercise for the dental team by the Radiology Practice Committee of the American Academy of Oral and Maxillofacial Radiology is intended to produce the highest quality diagnostic radiographs while keeping patient exposure as low as is reasonably achievable. To continue to provide the best radiographic services to patien...

This updated self-assessment exercise for the dental team by the Radiology Practice Committee of the American Academy of Oral and Maxillofacial Radiology is intended to produce the highest quality diagnostic radiographs while keeping patient exposure as low as is reasonably achievable. To continue to provide the best radiographic services to patien...

To compare the diagnostic performance provided by two- (film and digital radiography) and three-dimensional imaging modalities (TACT slices and TACT pseudoholograms) in the detection of primary caries. Forty-two extracted human posterior teeth were mounted and imaged with conventional film and direct digital radiography. Free-hand positioning of a...

Automatic exposure control has been used successfully in medicine to improve image quality and reduce the number of retakes necessitated by inadequate operator selection of exposure factors. The purpose of this study was to assess the influence of automatic exposure control on panoramic image quality. A total of 352 patients were imaged with either...

Dental professionals were reluctant to accept Ektaspeed (Eastman Kodak Co.) intraoral film despite its X-radiation dose-sparing advantages for patients. One reason may have been Ektaspeed film's known sensitivity to long-term storage as compared with that of Ultra-speed film (Eastman Kodak Co.). In 1995, Kodak replaced Ektaspeed with Ektaspeed Plus...

The purpose of this study was to assess the level of compliance with dental radiography quality assurance recommendations on the part of dental practitioners in the state of North Carolina and to determine whether the age of the practice was an influential factor affecting compliance. On-site survey inspections by state officials using measurement...

The objective of this study was to evaluate the accuracy of alveolar crestal bone detection in a comparison of unenhanced and enhanced Sidexis (Siemens Medical Systems, Inc., Bensheim, Germany) digital images with Ektaspeed Plus (Eastman Kodak, Rochester, N.Y.) films by means of receiver operating characteristic analysis. More than 100 proximal and...

To evaluate the accuracy of proximal caries detection comparing enhanced and unenhanced Siemens Sidexis CCD-based digital images with Ektaspeed Plus films utilizing receiver operating characteristic analysis. Sixty extracted teeth (24 posterior and 36 anterior) were imaged under identical standardized geometric and exposure conditions. Six observer...

This study compares the diagnostic accuracy of caries detection using Ultra-speed (Eastman Kodak), Ektaspeed (Eastman Kodak) and Ektaspeed Plus (Eastman Kodak) films after they were developed in both new and used processing solutions. Ektaspeed Plus film provided significantly better diagnostic accuracy for small proximal-surface caries limited to...

The purpose of this study was to determine the effect of three film-speed/collimator combinations on image quality, based on reviewer preference and diagnostic quality, based on caries detection. Two hundred sixteen proximal surfaces were evaluated for the presence and severity of carious lesions on bitewing-simulated projections using D-speed film...

PURPOSE: The purpose of this study was to determine the effect of three film-speed/collimator combinations on image quality, based on reviewer preference and diagnostic quality, based on caries detection. METHOD: Two hundred sixteen proximal surfaces were evaluated for the presence and severity of carious lesions on bitewing-simulated projections u...

Annual measurement of the x-ray unit focal spot size has been recommended by the American Academy of Oral and Maxillofacial radiology as part of the dental radiographic quality control program. This study compares the effects of focal spot size on caries diagnosis. Three x-ray units with small, medium, and large focal spot sizes were used to produc...

Despite the reduced radiation exposure documented with E-speed film use, many clinicians still prefer D-speed radiographic film. The authors tested various storage factors and found that E-speed film is more sensitive to these variables than D-speed film.

This study compared film speed, contrast, exposure latitude, and resolution of Ultra-speed, Ektaspeed, and Ektaspeed Plus films (Eastman Kodak Co., Rochester, N.Y.). Densitometric curves were generated for each film type under processing conditions of fresh and used chemistry to observe their effect on factors associated with diagnostic quality. Ek...

Objectives/study design: A random survey of equal proportions of urban and rural North Carolina general dentists was conducted to assess their knowledge and adoption of radiographic quality assurance guidelines of the American Dental Association. Results: A total of 159 surveys were returned representing a response rate of 51%. A majority of res...

Increased receptor speed in panoramic radiography is useful in reducing patient exposure if it doesn't substantially decrease the diagnostic quality of the resultant image. In a laboratory investigation four rare earth screen/film combinations were evaluated ranging in relative speed from 400 to 1200. The results indicated that an exposure reductio...