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Visionstar SJD-331

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Visionstar Dental And Oral Care Equipment

Visionstar SJD-331

Product Code: DAOC-DI-2738

Before the bridge goes on, look at what is holding it.

An abutment is only as good as its bone. The Visionstar SJD-331 pairs a 2.4 inch dot matrix readout with 60 or 70 kV, four milliamp steps and 0.1–2 s timing, at 1.7 kg.

Sections

Intraoral X-ray Units

Categories

Dental And Oral Care Equipment

Condition

New

Origin

China

Seller Type

Certified Professional Seller

Size:

145 × 145 × 140 mm

CE & ISO Certified

Global Shipping

Supplier: Medigear

The Visionstar SJD-331 is a battery-powered dental X-ray generator for intraoral radiography at the point of care. The generator runs at 30 kHz, with tube voltage selectable at 60 or 70 kV, tube current selectable across 1.5, 2.0, 2.5 and 3.0 mA, and exposure timing from 0.1 to 2 seconds. Tube focus is specified at order as 0.4 mm or 0.8 mm.

Fixed prosthodontic assessment is a natural application. Planning a bridge means looking hard at every proposed abutment: its periapical status, the bone supporting it, the crown-to-root ratio, root form and divergence, existing cores and restorations, and any caries at a margin. A single appointment can generate several periapical views, one per abutment, and the findings often decide whether a span is viable, whether the design changes, or whether the case is referred.

The control face carries a 2.4-inch dot matrix readout. Characters occupy a fixed field on an illuminated cell grid, so the same information sits in the same position on every exposure. Through a workup that takes several views in one sitting, that predictability keeps confirmation quick — the operator checks a known position each time.

Consistent output supports the same work. A 30 kHz inverter holds the kilovoltage waveform close to constant potential, so views taken across one appointment are comparable, and a review radiograph after cementation reads against the pre-treatment films.

Published dimensions are 145 × 145 × 140 mm at 1.7 kg. Published distance from skin to cone is 130 mm — raise that with your Radiation Protection Adviser during specification, since UK dental guidance sets minimum focus-to-skin distances that differ above 60 kV, and this unit offers a 70 kV setting. Power comes from a DC 14.8 V 1600 mAh lithium pack, charged from AC 100–240 V with a DC 16.8 V output, rated at 100–300 VA. Medigear.uk can arrange supply, delivery, commissioning, staff familiarisation and service cover for the SJD-331 across the United Kingdom.

Intraoral radiography carries the diagnostic load in UK general dentistry, and the SJD-331 is configured for that daily volume. It supports bitewing caries detection, periapical assessment of pathology, endodontic length verification, alveolar bone-level review and root morphology assessment ahead of extraction.

Fixed prosthodontics is the application this page is built around. Planning a bridge means assessing each proposed abutment individually — periapical status, root filling quality, bone support, crown-to-root ratio, root form and divergence, existing cores and restorations, and caries at margins. A workup routinely generates several periapical views in one appointment, and the findings decide whether the span is viable, whether the design changes, or whether the case is referred. Post-cementation review films are read against those pre-treatment images.

Upper posterior work brings the maxillary sinus into the picture. Its floor lies close to premolar and molar roots, and the relationship matters before extraction because of oro-antral communication risk. It also complicates interpretation, since the sinus outline can superimpose on apices and either mimic a periapical radiolucency or hide one — a point worth flagging to less experienced operators reading these views.

Restorative and periodontal practice use the same projections for margin assessment, bone-level review at recall and endodontic verification where an abutment needs treatment before it can carry load.

Community dental services and special care teams need equipment one clinician can carry. At 1.7 kg, the unit travels easily, and a 145 × 145 × 140 mm body stows in a lockable drawer between sessions, helping discharge the physical security duty IRR17 places on the employer.

Guidance from the College of General Dentistry and UKHSA Dental X-ray Protection Services remains the reference point that UK practices work to, alongside HSE enforcement of IRR17.

Built for a multi-view workup

An abutment assessment generates several periapicals in one appointment. A readout that puts the same information in the same place each time keeps confirmation quick across the sequence.

Output comparable across the appointment

A 30 kHz inverter holds the kilovoltage waveform close to constant potential, so views taken minutes apart are comparable, and a post-cementation review film reads against the pre-treatment images.

Detail where load-bearing decisions are made

Bone level, root form, root filling quality, and margin adaptation are the findings that decide whether a tooth can carry a pontic. Tube focus specified at order lets geometric sharpness be chosen deliberately for that work.

An exposure envelope that spans the view set

Two kilovoltage settings and four milliamp steps let a protocol reach from paediatric anterior views up to molar bitewings on a large adult, with values agreed by your MPE and recorded as local diagnostic reference levels.

Sized for the drawer and the case.

A 145 × 145 × 140 mm body stows in a lockable drawer between sessions and packs squarely for transport, helping discharge the IRR17 physical security duty.

Carried by one clinician

At 1.7 kg, the unit sits comfortably within single-person handling for a full list or a community round, alongside whatever else has to travel.

Specification questions surfaced before order.

Focus-to-skin distance, cone options at 70 kV, total filtration and exposures per charge are all worth settling in writing. Medigear.uk can arrange for the manufacturer's documentation on each to be requested with your quotation.

UK supply, commissioning and service through one route

Medigear.uk can arrange listing, supply, delivery, installation, commissioning, staff familiarisation, service cover, planned maintenance and quotations for the SJD-331 across the United Kingdom, with site survey support where a practice wants the radiation protection conversation scoped before order.

2.4-inch dot matrix readout

Characters are formed from an illuminated cell grid across a fixed field, presenting the same information in the same position on every exposure.

30 kHz generator

High-frequency drive produces a near-constant potential waveform through the exposure, supporting repeatable receptor density across a sequence of views.

Selectable tube voltage at 60 or 70 kV

Two kilovoltage settings support protocols that vary by region, patient build and the greyscale range a view requires.

Selectable tube current across four steps

Tube current is offered at 1.5, 2.0, 2.5 and 3.0 mA, giving a second exposure variable alongside kilovoltage and time.

0.1–2 second exposure timing

A twenty-fold span reaches direct digital sensors at the short end and phosphor storage plate or film technique at the upper limit.

Tube focus at 0.4 mm or 0.8 mm

Focus size is specified at order, one of the figures governing geometric sharpness at the receptor alongside working distance and receptor type.

130 mm published skin-to-cone distance

The manufacturer publishes a skin-to-cone figure; confirm with the manufacturer whether this is the focus-to-skin distance and which kilovoltage settings the supplied cone supports, and have your RPA review it.

145 × 145 × 140 mm body

Published dimensions give a near-square body, suited to lockable drawer storage and to packing squarely in a transport case.

Membrane control keypad

A sealed key array gives positive tactile feedback under gloves and presents a flat, wipeable control face for routine decontamination.

Ready and exposure indicators

Illuminated status markers signal machine state through the exposure cycle, giving visual confirmation at each stage.

Side-mounted exposure release

The exposure control sits on the side of the housing, within reach of the carrying hand while the head is held in position.

DC 14.8 V 1600 mAh lithium battery

An integrated lithium pack powers the unit away from a fixed power position, charged from AC 100–240 V with a DC 16.8 V output and a 100–300 VA rating.

Moulded hand strap

An integrated strap across the housing supports single-hand carrying and steadier beam alignment while the exposure is taken.

1.7 kg published weight

The figure that determines whether one clinician can realistically carry the unit through a full list or a community round.

The Visionstar SJD-331 gives UK dental teams a 1.7 kg battery-powered X-ray generator in a 145 × 145 × 140 mm body, built around a 2.4 inch dot matrix readout, selectable 60 or 70 kV tube voltage, four selectable milliamp steps, a 0.1–2 second exposure range, tube focus at 0.4 mm or 0.8 mm, 30 kHz generator drive and a DC 14.8 V lithium pack. It fits fixed prosthodontic assessment and bridge planning, restorative and periodontal practice, endodontics, NHS and private general practice, paediatric and special care dentistry, community dental services and outreach programmes. Medigear.uk can arrange supply, delivery, commissioning, staff familiarisation, service cover and planned maintenance across the United Kingdom, and can arrange for the manufacturer's focus-to-skin distance, cone, filtration and battery documentation to accompany your quotation for your Radiation Protection Adviser's review. Contact the Medigear.uk team for pricing, lead times, tube focus selection and configuration enquiries.

FAQ

Frequently Asked Questions

Everything buyers need to know about sourcing medical equipment through MediGear.

The things that decide whether a tooth can carry load. Periapical status, the presence and quality of any root filling, bone support around the root, root form and whether roots diverge, the depth and adaptation of existing restorations, caries at a margin, and any post already in place. Any one of these can change a treatment plan from a fixed bridge to a different design or to a referral, which is why the workup is done before the preparation rather than after.

Both are read directly off the image. The level of the alveolar crest relative to the root, the pattern of any bone loss, and the proportion of root within bone against crown height outside it are all visible on a well-angulated periapical. Reproducible geometry matters here, since a foreshortened root distorts the proportion being judged, so paralleling technique with a beam-aiming holder does much of the work.

The floor of the maxillary sinus sits close to the roots of upper premolars and molars, and periapical views show that relationship — which matters before extraction because of the risk of an oro-antral communication. Read with care, though: the sinus outline can superimpose on root apices and either mimic a periapical radiolucency or obscure one. Where the relationship is the deciding question, a panoramic or sectional view gives a better appreciation of it.

No, and it should not be presented as such. Periapicals answer tooth-by-tooth questions well. Span assessment also needs clinical examination, occlusal analysis, study models or a digital scan, periodontal charting, and often a panoramic radiograph for a whole-arch view. Each radiograph is justified individually under IR(ME)R 2017 on the question being asked, so the projection should follow the question rather than a routine.

A fixed field. Characters are built from an illuminated cell grid at generous size and appear in the same position on every exposure, so during a workup taking several views in one appointment the operator confirms a known location rather than reading the panel afresh each time.

Raise this before order. UK dental guidance sets minimum focus-to-skin distances for intraoral equipment, and the required figure steps up for sets operating above 60 kV — commonly expressed as 100 mm at 60 kV and below, and 200 mm above 60 kV. This unit offers a 70 kV setting and publishes a 130 mm skin-to-cone figure. Ask the manufacturer to confirm whether that is the focus-to-skin distance or a cone measurement, whether a longer cone is available, and which kilovoltage settings the supplied cone supports. Have your Radiation Protection Adviser resolve it before the unit goes into service.

The pack is a DC 14.8 V 1600 mAh lithium unit, charged from AC 100–240 V with a DC 16.8 V output, so it runs on UK mains directly. The manufacturer does not publish an exposures-per-charge figure, which is worth pressing on where multi-abutment workups take several views per appointment. Request it at quotation along with spare pack availability and pricing.

The Ionising Radiations Regulations 2017 require employers carrying out dental X-ray work to register with the Health and Safety Executive, appoint a Radiation Protection Adviser, nominate a Radiation Protection Supervisor and complete a radiation risk assessment. The Ionising Radiation (Medical Exposure) Regulations 2017 add the appointment of a Medical Physics Expert, justification and optimisation of each exposure, and documented training for referrers, practitioners and operators. A critical examination is required when the equipment is put into service.

Dental X-ray equipment is subject to routine quality assurance and periodic radiological testing under IRR17, alongside annual electro-mechanical inspection, with a critical examination required at installation. UK service providers commonly apply an annual radiological testing interval to hand-carried units, and your Radiation Protection Adviser sets the schedule. Warranty terms are set and issued by the seller or manufacturer, typically 12–24 months, with battery packs often warranted on a shorter cycle — confirm at quotation.