British Journal of Oral & Maxillofacial Surgery

Article	Citations
Use of mouthwashes against COVID-19 in dentistry	122
Personal protective equipment and Covid 19- a risk to healthcare staff?	90
Testing recommendation for COVID-19 (SARS-CoV-2) in patients planned for surgery - continuing the service and ‘suppressing’ the pandemic	67
COVID-19 associated mucormycosis (CAM) in India: a formidable challenge	47
Human factors recognition at virtual meetings and video conferencing: how to get the best performance from yourself and others	47
Management in oral and maxillofacial surgery during the COVID-19 pandemic: Our experience	42
Impact of COVID-19 epidemic on maxillofacial surgery in Italy	40
Surgical tracheostomies in Covid-19 patients: important considerations and the “5Ts” of safety	39
Operating during the COVID-19 pandemic: How to reduce medical error	38
Antibiotic prophylaxis in oral and maxillofacial surgery: a systematic review	38
The COVID-19 effect: number of patients presenting to The Mid Yorkshire Hospitals OMFS team with dental infections before and during The COVID-19 outbreak	35
Provision of Emergency Maxillofacial Service During the COVID-19 Pandemic : A Collaborative Five Centre UK Study	35
The impact of smoking on surgical complications after head and neck reconstructive surgery with a free vascularised tissue flap: a systematic review and meta-analysis	34
Leading article: What can we do to improve individual and team situational awareness to benefit patient safety?	34
The importance of olfactory and gustatory disorders as early symptoms of coronavirus disease (COVID-19)	32
Timing of dental extractions in patients undergoing radiotherapy and the incidence of osteoradionecrosis: a systematic review and meta-analysis	31
Botulinum toxin in the management of temporomandibular disorders: a systematic review	30
Systematic review and meta-analysis of tracheostomy outcomes in COVID-19 patients	28
Increasing frequency and severity of odontogenic infection requiring hospital admission and surgical management	25
Impact of orthognathic surgery on quality of life of patients with dentofacial deformity: a systematic review and meta-analysis	25
Dental implants as risk factors for patients with medication-related osteonecrosis of the jaws (MRONJ)	25
Medication-related osteonecrosis of the jaws and quality of life: review and structured analysis	23
Loneliness and quality of life after head and neck cancer	23
What are the limitations of the non-patient-specific implant in titanium reconstruction of the orbit?	23
You Have Control: aviation communication application for safety-critical times in surgery	21

Supraclavicular lymphadenopathy following COVID-19 vaccination: an increasing presentation to the two-week wait neck lump clinic?	20
Oral mucosal lesions in patients with COVID-19: a systematic review	20
Clinicians’ and patients’ acceptance of the virtual clinic concept in maxillofacial surgery: a departmental survey	20
A systematic review of the complications of high-risk third molar removal and coronectomy: development of a decision tree model and preliminary health economic analysis to assist in treatment planning	20
Prevalence and severity of orbital blowout fractures	19
Systematic scoping review of mandibular bone tissue engineering	19
The influence of 2020 coronavirus lockdown on presentation of oral and maxillofacial trauma to a central London hospital	18
Evaluation of the accuracy of virtual planning in bimaxillary orthognathic surgery: a systematic review	17
Head and neck sarcomas in adulthood: current trends and evolving management concepts	17
E-scooter injuries referred to the oral and maxillofacial surgical service at Christchurch Hospital: a retrospective observational study and cost analysis of 17-months of data	17
Outcome of different treatments for chronic diffuse sclerosing osteomyelitis of the mandible: a systematic review of published papers	16
Effect of photobiomodulation on recovery from neurosensory disturbances after sagittal split ramus osteotomy: a triple-blind randomised controlled trial	16
Effectiveness of marsupialisation and decompression on the reduction of cystic jaw lesions: a systematic review	15
Use of antibiotics in traumatic mandibular fractures: a systematic review and meta-analysis	15
Pleomorphic dermal sarcoma: a clinical and histological review of 49 cases	15
Bilateral sagittal split osteotomy training on mandibular 3-dimensional printed models for maxillofacial surgical residents	15
Advent of the virtual multidisciplinary team meeting: do remote meetings work?	15
The impact of COVID-19 on cervicofacial infection of dental aetiology	15
Severe odontogenic infections: focus on more effective early treatment	14
Virtual and traditional surgical planning in orthognathic surgery – systematic review and meta-analysis	14
Radiotherapy and the survival of dental implants: a systematic review	14
Oral and maxillofacial surgery patient satisfaction with telephone consultations during the COVID-19 pandemic	14
The role of the Head and Neck cancer-specific Patient Concerns Inventory (PCI-HN) in telephone consultations during the COVID-19 pandemic	14
Printed titanium implants in UK craniomaxillofacial surgery. Part II: perceived performance (outcomes, logistics, and costs)	14
Mandibular condylar fracture: a systematic review of systematic reviews and a proposed algorithm for management	14
Changes in United Kingdom oral and maxillofacial surgical specialty trainees since 1995 – numbers, gender, first degrees, and nations of origin	14
Following COVID-19 clinicians now overwhelmingly accept virtual clinics in Oral and Maxillofacial Surgery	14
Xenograft materials in maxillary sinus floor elevation surgery: a systematic review with network meta-analyses	14
Our specialty. The future. Is the writing on the wall?	14
Evidence-based algorithm for the management of acute traumatic retrobulbar haemorrhage	13
Extranodal extension in head and neck squamous cell cancer: is there a role for further stratification?	13
Use of augmented reality navigation to optimise the surgical management of craniofacial fibrous dysplasia	13
“Flipped OR”: a modified didactical concept for a surgical clerkship in Oral and Maxillofacial Surgery	13
Systematic review of medication related osteonecrosis of the jaw (MRONJ) in patients undergoing only antiangiogenic drug therapy: surgery or conservative therapy?	12
Oral ulceration as presenting feature of paediatric inflammatory multisystem syndrome associated with COVID-19	12
Relation of vitamin D and BsmI variant with temporomandibular diseases in the Turkish population	12
Survival of oral mucosal melanoma according to treatment, tumour resection margin, and metastases	12
Coronavirus pandemic: applying a whole-of-society model for the whole-of-the world	12
Oromandibular dystonia: a diagnosis not to miss	12
Patient-specific soft tissue reconstruction: an IDEAL stage I report of hemiglossectomy reconstruction and introduction of the PANSOFOS flap	12
Are you surgically current? Lessons from aviation for returning to non-urgent surgery following COVID-19	12
Management of oral and maxillofacial trauma during the first wave of the COVID-19 pandemic in the United Kingdom	12
Osteoarthritis of the temporomandibular joint: a review of aetiology and pathogenesis	12
Intraparotid node metastases in adults with parotid mucoepidermoid cancer: an indicator of prognosis?	12
Malignant tumours of the parotid gland: management of the neck (including the clinically negative neck) and a literature review	12
Setting up and maximising the usage of an Urgent Dental Care Centre in Blackpool. Sharing our experiences	12
Current thinking in lower third molar surgery	11
Diagnostic accuracy of magnetic resonance imaging in detecting depth of invasion of tongue cancers	11
Maxillary sinus septa and anatomical correlation with the dentition type of sinus region: a cone beam computed tomographic study	11
Evaluation and comparison of anti-inflammatory properties of ibuprofen using two drug delivery systems after third molar surgery: using chitosan microspheres as a carrier for local drug delivery in to	11

The preventive effect of hydrocolloid dressing to prevent facial pressure and facial marks during use of medical protective equipment in COVID-19 pandemic	11
Neutrophil to lymphocyte ratio as a prognostic marker of deep neck space infections secondary to odontogenic infection	11
Operative time, length of stay and reoperation rates for orthognathic surgery	11
Best practice in reducing the suicide risk in head and neck cancer patients: a structured review	11
Bibliometric analysis of international publication trends in impacted third molar surgery research (2000–2020)	11
Toward a consensus view in the management of acute facial injuries during the Covid-19 pandemic	11
COVID-19 vaccination and low cervical lymphadenopathy in the two week neck lump clinic - a follow up audit	11
Tamoxifen exposure induces cleft palate in mice	11
Findings from an OMFS journal club: is COVID-19 the catalyst we have needed to embrace technology?	11
COVID-19 social-distancing measures altered the epidemiology of facial injury: a United Kingdom-Australia comparative study	11
TikTok™: an application that oral and maxillofacial surgery should not overlook	11
Comparison of the osteogenic effectiveness of an autogenous demineralised dentin matrix and Bio-Oss® in bone augmentation: a systematic review and meta-analysis	10
Effectiveness of different protocols to reduce postoperative pain following orthognathic surgery: A systematic review and meta-analysis	10
Changing the Oral and Maxillofacial Surgery (OMFS) training pathway in the United Kingdom – an illustrative retrospective	10
Health related quality of life and patient concerns in patients with osteoradionecrosis	10
Comparison of functional outcomes and health-related quality of life one year after treatment in patients with oral and oropharyngeal cancer treated with three different reconstruction methods	10
Validation of an extended total joint replacement (eTJR) classification system for the temporomandibular joint (TMJ)	10
Lateral segmental mandibulectomy reconstruction with bridging reconstruction plate and anterolateral thigh free flap: a case series of 30 consecutive patients	10
Stability and surgical complications of tooth-borne and bone-borne appliances in surgical assisted rapid maxillary expansion: a systematic review	10
Malignant transformation in a cohort of patients with oral epithelial dysplasia	10
Dual surgeon operating to improve patient safety	10
Current practice in the management of peripheral ameloblastoma: a structured review	10
Neck failure following pathologically node-negative neck dissection (pN0) in oral squamous cell carcinoma: a systematic review and meta-analysis	10
Effect of leukocyte and platelet rich fibrin (L-PRF) on stability of dental implants. A systematic review and meta-analysis	10
Three-dimensional (3D) printing for post-traumatic orbital reconstruction, a systematic review and meta-analysis	10
Lipofilling of the upper eyelid to treat paralytic lagophthalmos	9
Clinical outcomes of lingual nerve repair	9
Tracheal Stenosis after Tracheostomy	9
Reliability of cephalometric landmark identification on three-dimensional computed tomographic images	9
New World Health Organization classification of odontogenic tumours: impact on the prevalence of odontogenic tumours and analysis of 1231 cases from Turkey	9
Do patient-specific cutting guides and plates improve the accuracy of maxillary repositioning in hemifacial microsomia?	9
Extraction of low horizontally and buccally impacted mandibular third molars by three-piece tooth sectioning	9
Oral and Maxillofacial Surgery (OMFS) Consultant Workforce in the UK: reducing consultant numbers resulting from recruitment issues, pension pressures, changing job-plans, and demographics when combin	9
Application of human factors at hybrid meetings: facilitating productivity and inclusivity	9
Additional cost in personal protective equipment to NHS services during COVID-19: a review of the expense incurred by Aneurin Bevan Healthboards Maxillofacial unit over a one-year period to meet curre	9
Three changes to reduce the loss of dual degree trainees from OMFS national specialty selection in the UK: evidence based proposals	9
Does maxillary superior repositioning affect nasal airway function?	9
2012 – The year when BAOMS and its officers prevented closure of all UK shortened medical and dental courses	9
The UK Mentoring and Support Programme (MSP) for those considering a career in Oral and Maxillofacial Surgery (OMFS). A review of a ‘Register Interest in OMFS’ website and the MSP as two key resources	9
Postoperative delirium in patients with head and neck oral cancer in the West of Scotland	9
Outcomes of physical therapy in patients with temporomandibular disorder: a retrospective review	9
Maxillofacial education in the time of COVID-19: the West Midlands experience	9
Palmatine alleviates hyperalgesia by inhibiting the expression of calcitonin gene-related peptide in the trigeminal ganglion of rats with chronic constriction injury of the infraorbital nerve	9
Difficult airways: a 3D printing study with virtual fibreoptic endoscopy	9
United Kingdom immigration and emigration of oral and maxillofacial Surgery (OMFS) specialists 2000-2020: how might Brexit impact on OMFS?	9
Comparison of primary care doctors and dentists in the referral of oral cancer: a systematic review	9
Challenges and outcomes in establishing a sentinel lymph node biopsy service for oral squamous cell carcinoma in a regional district specialist hospital	9
Rapid response: activity from a hospital based Urgent Dental Care Centre during the COVID-19 pandemic	9
Role of Carnoy's solution as treatment adjunct in jaw lesions other than odontogenic keratocyst: a systematic review	9
Modification of an extended total temporomandibular joint replacement (eTMJR) classification system	9
Non-neoplastic jaw cysts: a 30-year epidemiological study of 2150 cases in the Italian population	9
Disorders of microcirculation in the mechanism of bisphosphonate osteonecrosis: preliminary study in rats	9
Comparison of the postoperative and follow-up accuracy of articulator model surgery and virtual surgical planning in skeletal class III patients	8
Impacts of lockdown during the SARS-CoV-2 pandemic on patients presenting with cervicofacial infection of odontogenic origin: a comparative study	8
European OMFS in the time of Brexit – where did the UK fit and how might the future look?	8
Reducing medical error during a pandemic	8
Machine learning methods applied to risk adjustment of cumulative sum chart methodology to audit free flap outcomes after head and neck surgery	8
Septal extension graft for correcting short nose in East Asians: review of autologous cartilage grafts and postoperative stability	8
New mouthwash: an efficacious intervention for oral ulceration associated with Behçet's disease	8
Retrospective analysis of schwannoma in the oral and maxillofacial region: clinicopathological characteristics and specific pathology of ancient change	8
Three-dimensional, high-definition exoscopic parotidectomy: a valid alternative to magnified-assisted surgery	8
Attitude of clinical medical students to Oral and Maxillofacial Surgery as a career: a perspective from two English Medical Schools	8
Potentially modifiable patient factors in mandible fracture complications: a systematic review and meta-analysis	8
Comparison of intraoperative outcomes with single and double puncture techniques of arthrocentesis of the temporomandibular joint	8
Strategies to reduce re-ankylosis in temporomandibular joint ankylosis patients	8
Diverse therapies for disc displacement of temporomandibular joint: a systematic review and network meta-analysis	8
Novel double injection technique for sentinel lymph node biopsy in oral cancer	8
Electric scooters: convenient transport or ED headache?	8
Scapular free flap as a good choice for mandibular reconstruction: 119 out of 280 cases after resection of oral squamous cell carcinoma in a single institution	8
Duration of specialty training in Oral and Maxillofacial Surgery in the United Kingdom for trainees joining the OMFS specialist list between 2002 and 2019	8
Surgical approach to parotid pleomorphic adenoma: a 15-year retrospective cohort study	8
Efficacy of botulinum-A for nocturnal bruxism pain and the occurrence of bruxism events: a meta-analysis and systematic review	8
Intraoperative imaging in orbital reconstruction: how does it affect the position of the implant?	7
Accuracy of position of cutting and drilling guide for sagittal split guided surgery: a proof of concept study	7
The future of OMFS lies in creating pathways to implement the PMETB recommendations and inspiring our trainees. Enough time has been spent debating, we need to deliver!	7
Comparative efficacy and safety of different corticosteroids to reduce inflammatory complications after mandibular third molar surgery: a systematic review and network meta-analysis	7
Quality assessment of randomised controlled trials in oral and maxillofacial surgery	7
Should survivors of head and neck cancer be considered a distinct special population within the context of exercise prescription?	7
Custom three-dimensional printed orbital plate composed of two joined parts with variable thickness for a large orbital floor reconstruction after post-traumatic zygomatic fixation	7
Recent advances in the management of cutaneous malignant melanoma: our case cohort	7

Use of CAD-based pre-bent implants reduces theatre time in orbital floor reconstruction: results of a prospective study	7
Tongue and floor of mouth swelling: a potential rare manifestation of COVID-19	7
Risk factors for bad splits during sagittal split ramus osteotomy: a retrospective study of 964 cases	7
Assessing the optimal imaging modality in the diagnosis of jaw osteomyelitis. A meta-analysis	7
Outcomes of microvascular composite reconstruction for mandibular osteoradionecrosis	7
Long-term neurosensory disturbances after modified sagittal split osteotomy	7
Outcomes and complications associated with malar onlays: literature review and case series of 119 implants	7
Morbidity related to the lip-split mandibulotomy approach: a systematic and narrative review	7
Virtual postgraduate exams and assessments: the challenges of online delivery and optimising performance	7
Periodontal disease as a primary cause of surgical site infection in fractures of the mandible: is smoking a confounding variable?	7
Implant-supported oral rehabilitation in oncology patients: a retrospective cohort study	7
What is a better modality of maxillomandibular fixation: bone-supported arch bars or Erich arch bars? A systematic review and meta-analysis	7
Haemorrhage control beyond Advanced Trauma Life Support (ATLS) protocol in life threatening maxillofacial trauma – experience from a level Ⅰ trauma centre	7
Evaluation of remote OMFS assessments in the era of pandemic COVID-19 control measures	7
Training in oral and maxillofacial surgery: a medicine-first perspective	7
UK Oral and Maxillofacial Surgery trainees join the specialist list at a similar age to other surgical specialists	7
Legislation for Oral and Maxillofacial Surgery (OMFS) in the UK lags behind the patient care we provide: an illustrative timeline and recommendations for the future	7
Intraconal orbital displacement of a dental implant treated with an endoscopically-assisted approach	7
Effective ancillary role and long-term course of daily or weekly teriparatide treatment on refractory medication-related osteonecrosis of the jaw: a clinical case series	7
Role of the dental degree in the UK Oral and Maxillofacial training pathway: is there a future without it?	7
Protection of an intraoral surgical wound with a new dressing: a randomised controlled clinical trial	7
Systematic review of lingual nerve retraction during surgical mandibular third molar extractions	7
Surgical treatment of fractures of the zygomaticomaxillary complex: effect of fixation on repositioning and stability. A systematic review	7
Using a patient prompt list to raise concerns in oncology clinics does not necessarily lead to longer consultations	7
In-vitro assessment of bone viability with different implant drill speeds	7
Effectiveness of glucocorticoids in orthognathic surgery: an overview of systematic reviews	7
COVID-associated mucormycosis (CAM): is the Delta variant a cause?	7
Density of the mandibular ramus (cancellous:cortical bone volume ratio) as a predictor of the lingual fracture pattern in bilateral sagittal split osteotomy	6
Review and update on the use of the microanastomotic coupler device for arterial anastomosis in free tissue transfer	6
Role of iodoform in jaw lesions: a systematic review	6
The role of illicit drugs in developing medication-related osteonecrosis (MRONJ): a systematic review	6
Impact of prolotherapy in temporomandibular joint disorder: a quality of life assessment	6
Evaluation of the efficiency of different treatment modalities in individuals with painful temporomandibular joint disc displacement with reduction: a randomised controlled clinical trial	6
Sandwich osteotomy of the atrophic posterior mandible with interpositional autogenous bone block graft compared with bone substitute material: a systematic review and meta-analysis	6
Accuracy and cost effectiveness of a waferless osteotomy approach, using patient specific guides and plates in orthognathic surgery: a systematic review	6
Antibiotic prophylaxis in orthognathic surgery: an overview of systematic reviews	6
Dislocation of the mandibular condyle into the middle cranial fossa. A case of temporomandibular joint arthroplasty with resorbable fixation system and temporalis myofascial flap: systematic review an	6
Osteoradionecrosis after treatment of head and neck cancer: a comprehensive analysis of risk factors with a particular focus on role of dental extractions	6
Microvascular anastomotic coupler devices versus hand-sewn technique for arterial anastomosis: a systematic review	6
Virtual ARCP assessment and trainee feedback meetings: facilitating the best experience and practice	6
Preoperative status and treatment of osteoradionecrosis of the jaw: a retrospective study of 252 cases	6
Evaluation of segmental mandibular resection without microvascular reconstruction in patients affected by medication-related osteonecrosis of the jaw: a systematic review	6
Role of alloplastic reconstruction of the temporomandibular joint in the juvenile idiopathic arthritis population	6
Fourteen-year study of the management of the odontogenic keratocyst. Are adjunctive therapies all they are cut out to be?	6
Conjoint fascial sheath suspension for early correction of severe blepharoptosis after double-eyelid blepharoplasty	6
Surgical cutting guide for orthognathic anterior segmental subapical surgery	6
Predictive risk factors for persistent pain following total prosthetic temporomandibular joint replacement	6
Editorial: exploring evidence-based options for reducing the duration of UK OMFS training	6
Systemic inflammatory response in predicting outcomes of patients undergoing curative resection for oral squamous cell carcinoma	6
How can oral and maxillofacial surgery units best support second degree students?	6
Stability of fixation methods in large mandibular advancements after sagittal split ramus osteotomy: an in vitro biomechanical study	6
Oral and maxillofacial injuries from electric scooters in Bristol: a retrospective observational study	6
Management of sagittal craniosynostosis: morphological comparison of eight surgical techniques	6
Cannabis and orofacial pain: a systematic review	6
Sexual dimorphism and geographical variance: their impact on the reliability of the antilingula as a landmark in human mandibular surgery	6
Salivary gland tumours: an epidemiological review of non-neoplastic and neoplastic pathology	6
Assessment of surgical outcomes and oncological safety for submental artery perforator flap reconstruction after ablation of oral cancer	6
Orbital bone fractures: 10 years’ experience at the Rome trauma centre: retrospective analysis of 543 patients	6
Sentinel lymph node biopsy for early oral cancer – accuracy and considerations in patient selection	6
Evaluating the efficacy of recombinant human bone morphogenic protein-2 in the treatment of alveolar clefts with autologous bone grafting using computer-aided engineering techniques	6
Dental and medical dual qualification in Oral and Maxillofacial Surgery: a global identity	6
Association between non-vascularised bone graft failure and compartment of the defect in mandibular reconstruction: a systematic review and meta-analysis	6
Two-week rule: suspected head and neck cancer referrals from a general medical practice perspective	6
Construction of tissue-engineered bone with differentiated osteoblasts from adipose-derived stem cell and coral scaffolds at an ectopic site	6
Flapless dental implant placement using a recently developed haptic robotic system	6
Do state-trait anxiety and previous unpleasant dental experiences predict the need for sedation in women having third molar surgery?	6
Does the UK undergraduate medical curriculum prepare students in Oral and Maxillofacial Surgery? A scoping review	6
Unicystic ameloblastoma: analysis of surgical management and recurrence risk factors	6
Maintaining medical team communication using video conferencing during the COVID-19 lockdown	6
Variation in UK Deanery publication rates in the British Journal of Oral and Maxillofacial Surgery: where are the current 'hot spots'?	5
Maxillofacial services in the COVID-19 (SARS-CoV-2) pandemic – early lessons from the Italian experience	5
Does arthroscopy cause more complications than arthrocentesis in patients with internal temporomandibular joint disorders? Systematic review and meta-analysis	5
Is extracapsular dissection for pleomorphic adenoma rather a euphemism for enucleation that jeopardises the intactness of the capsule?	5
Printed titanium implants in UK craniomaxillofacial surgery. Part I: access to digital planning and perceived scope for use in common procedures	5
Can costochondral grafts fulfil ramus-condyle unit reconstruction goals in children with temporomandibular joint ankylosis?	5
Biomechanical evaluation of two miniplate fixations applied in the anterior region after Le Fort I osteotomy: an experimental study	5
Oral and Maxillofacial Surgical simulation: efficacy for medical students	5
Association between periodontal disease and oral squamous cell carcinoma: a systematic review and meta-analysis	5
Does anticoagulation improve outcomes of microvascular free flap reconstruction following head and neck surgery: a systematic review and meta-analysis	5
Nutritional intervention during maxillomandibular fixation of jaw fractures prevents weight loss and improves quality of life	5
How effective is 5-Fluorouracil as an adjuvant in the management of odontogenic keratocyst? A systematic review and meta-analysis	5
Hypercoagulability following COVID-19 infection: at what stage is it safe to do a free flap?	5
Mediastinitis of odontogenic origin. A serious complication with 80 years of history	5
Nasofrontal dermoid cyst: rare presentation of a philtrum sinus	5
Review of expandable dental implants	5
The ‘R’ word – do dental core trainees possess it?	5
Management of odontogenic cervicofacial infections presenting to oral and maxillofacial units during the first wave of the COVID-19 pandemic in the United Kingdom	5
Effects of photobiomodulation therapy on implant stability and postoperative recovery: a systematic review and meta-analysis	5
Outcomes of free flap reconstructive surgery in head and neck cancer patients over 80-years old	5
Does the geriatric nutrition risk index predict the prognosis of patients with oral squamous cell carcinoma?	5
Implementation of “local safety standards for invasive procedures (LocSSIPs)” policy: not merely a tick-box exercise in patient safety	5
Retropharyngeal lymph node metastasis in oral cancer. Systematic review and survival analysis	5
Long-term condylar remodelling after bimaxillary orthognathic surgery in skeletal Class III patients	5
Evaluation of a novel osteosynthesis plate system for mandibular defects	5
Quality of life in patients with oral cancer treated by different reconstruction methods as measured by the EORTC QLQ-H&N43	5