Citoject Syringe for Periodontal Ligament Anesthetic Delivery

The Citoject Syringe from Peak Surgicals (SKU: PS-7139) is a reusable stainless steel dental anesthetic syringe designed for controlled intraligamental, periodontal ligament, intraseptal, and localized intraoral anesthetic delivery during restorative dentistry, endodontic therapy, tooth extraction, pediatric dentistry, periodontal treatment, crown preparation, and minor oral surgery. Each syringe is priced at $66.00 and features a pen-style body, cartridge chamber, side viewing window, needle hub, internal plunger rod, pressure-regulating drive mechanism, lever activation control, spring-supported delivery action, and protective sleeve profile for precise placement at the periodontal ligament space. Dentists, oral surgeons, endodontists, pediatric dentists, periodontists, general dental practitioners, hospital dental departments, outpatient clinics, ambulatory oral surgery centers, and dental procurement teams use this syringe when tooth-specific anesthesia is required without broad soft tissue numbness. The instrument supports standard dental anesthetic cartridges and fine-gauge dental needles, allowing the clinician to deliver small volumes of local anesthetic into the periodontal ligament area adjacent to the selected tooth while maintaining controlled hand position and direct tactile feedback.

Pen-Style Barrel, Cartridge Chamber, Side Window, Needle Hub, and Lever Control

The Citoject design uses a pen-style barrel so the clinician can hold the syringe close to the operative site with a stable writing-grip position. The cartridge chamber houses the standard dental anesthetic cartridge, while the side viewing window allows the operator to monitor cartridge placement and remaining anesthetic volume during clinical use. The needle hub supports attachment of a fine-gauge dental needle so the tip can be positioned into the periodontal ligament space at the mesial or distal line angle of the target tooth. The internal plunger rod advances the cartridge piston when the lever control is activated. This lever-driven mechanism converts small hand movement into controlled anesthetic expression, reducing sudden bolus delivery into dense periodontal tissue. The pressure-regulating action is central to intraligamental injection because the ligament space offers high resistance compared with loose mucosal infiltration sites. The sleeve and clip-style body stabilize the hand while the operator maintains needle angle, insertion depth, and gradual delivery.

PDL Injection, Endodontic Anesthesia, Restorative Dentistry, Extraction, and Pediatric Workflow

During periodontal ligament injection, the Citoject Syringe is positioned with the needle bevel directed into the gingival sulcus and advanced into the ligament space alongside the tooth root. In endodontic therapy, the instrument supports supplemental anesthesia for mandibular molars, inflamed pulps, failed block anesthesia, and tooth-specific pulpal control before access cavity preparation, canal negotiation, shaping, and obturation. During restorative dentistry, it provides localized anesthesia for crown preparation, deep caries excavation, matrix placement, and operative work on a single tooth. In extraction workflow, the syringe supports supplemental periodontal anesthesia before luxation, elevator use, root movement, and forceps delivery. In pediatric dentistry, controlled small-volume delivery is valuable when broad lip, tongue, or cheek anesthesia is not desired after treatment. During periodontal procedures, the instrument supports localized anesthesia around selected teeth before scaling, root planing, gingival manipulation, or minor surgical access. Its compact body improves posterior access where conventional aspirating syringes can obstruct the working view.

Standard Dental Cartridge Compatibility and Fine-Gauge Needle Delivery

The Citoject Syringe is built around standard dental anesthetic cartridge use, allowing dental teams to integrate it into existing local anesthesia workflows without changing cartridge inventory. The cartridge chamber supports controlled seating of the carpule, while the plunger rod engages the rubber piston for progressive anesthetic advancement. Fine-gauge needle compatibility supports accurate periodontal ligament placement at the cervical region of the selected tooth. Smaller needle diameter is useful in PDL anesthesia because access is made through the sulcus into a narrow ligament space rather than through broad mucosal tissue. The side window provides visual confirmation of cartridge position and volume status during repeated tooth-specific injections. The lever mechanism allows the clinician to deliver limited anesthetic increments while maintaining the needle in the same periodontal position. This design is clinically different from a conventional aspirating syringe, which is optimized for nerve block and infiltration delivery. The Citoject format is selected when the operator needs compact access, controlled pressure, and localized anesthetic expression.

Stainless Steel Construction, Reprocessing, Finish Integrity, and Procurement Documentation

Stainless steel construction gives the Citoject Syringe the rigidity, corrosion resistance, and reusable durability required for repeated dental clinic and oral surgery use. A cartridge syringe must retain cartridge chamber alignment, plunger rod movement, lever response, needle hub fit, side window integrity, and smooth exterior surfaces because distortion can affect anesthetic delivery control. The metal body supports repeated cleaning and clinical reprocessing while maintaining the tactile feel required for periodontal ligament injection. After use, the needle is removed, the cartridge is discarded according to clinic protocol, the chamber is opened, the plunger mechanism is cleaned, and the exterior body is wiped and inspected before sterilization workflow. Hinged and lever-contact areas are brushed carefully so dried anesthetic residue does not affect movement. CE marking, ISO-13485 certification, and FDA compliance support hospital purchasing, dental clinic procurement, distributor documentation, and international tender files. The listed SKU, $66.00 price, reusable format, and standard cartridge compatibility support procurement planning for dental anesthesia instrument trays.

How does the Citoject Syringe compare with a conventional aspirating dental syringe?
The Citoject Syringe is designed for periodontal ligament and localized tooth-specific anesthetic delivery, while a conventional aspirating syringe is used mainly for infiltration and nerve block techniques. A standard aspirating syringe holds the cartridge in a larger thumb-ring frame and is operated with direct plunger pressure. The Citoject format uses a compact pen-style body and pressure-regulated lever mechanism for controlled expression into a resistant ligament space. This makes it better suited for supplemental anesthesia around a single tooth during endodontic therapy, restorative treatment, pediatric dentistry, and extraction workflow. Conventional syringes remain essential for inferior alveolar nerve block, buccal infiltration, palatal infiltration, and field anesthesia. The Citoject Syringe is selected when the operator needs smaller volume, localized placement, compact intraoral access, and controlled pressure at the periodontal ligament.

Which clinical cases are best matched to Citoject Syringe use?
The Citoject Syringe is matched to cases requiring tooth-specific anesthesia through the periodontal ligament route. It is used during endodontic treatment when pulpal anesthesia remains incomplete after mandibular block or infiltration. It is also useful in restorative dentistry when a single tooth requires anesthesia for crown preparation, caries excavation, or deep operative work. During extraction, the instrument supports supplemental anesthesia around the tooth before luxation and forceps delivery. In pediatric dentistry, localized delivery helps avoid broad soft tissue numbness after treatment. For periodontal procedures, it supports anesthesia around selected teeth before subgingival instrumentation or minor surgical access. The syringe is selected when the clinical goal is localized PDL anesthetic delivery rather than broad regional numbness.

What do CE, ISO 13485, and FDA compliance mean for dental procurement?
CE marking supports conformity documentation for dental clinics, hospitals, distributors, and procurement teams sourcing reusable dental anesthetic instruments. ISO 13485 indicates that manufacturing is managed under a medical device quality management system with controlled production, inspection, and traceability. FDA compliance supports procurement records for buyers sourcing reusable dental devices for regulated healthcare markets. The Citoject Syringe fits purchasing categories for non-powered dental anesthetic delivery instruments used in clinical examination rooms, operative dentistry, oral surgery, and endodontic departments. These credentials help procurement officers compare the syringe against tender requirements, internal purchasing rules, and distributor documentation needs. The listed SKU PS-7139, price $66.00, standard cartridge compatibility, and reusable format support repeat ordering. For dental practices and hospital oral health units, the documentation aligns localized anesthetic delivery function with regulated sourcing expectations.

How is the pressure-regulating lever mechanism used during PDL injection?
The dental cartridge is seated into the Citoject Syringe, the needle is attached, and the tip is positioned into the periodontal ligament space beside the target tooth. The clinician stabilizes the pen-style body with the fingers while maintaining the needle angle against the root surface. The lever is pressed gradually so the internal plunger advances the cartridge piston in controlled increments. This lever action helps deliver anesthetic into a high-resistance space without sudden forceful expression. The operator monitors tactile resistance, cartridge movement through the side window, and tissue response at the injection site. The compact body allows the clinician to keep the needle steady during posterior access and single-tooth anesthesia. This mechanism supports precise supplemental anesthesia during endodontic, restorative, extraction, periodontal, and pediatric dental procedures.

How should the Citoject Syringe be cleaned and prepared after use?
After use, the needle is removed and disposed of according to sharps protocol, and the anesthetic cartridge is removed from the chamber. The syringe body is decontaminated promptly so anesthetic residue, blood, saliva, or tissue fluid does not dry on the cartridge chamber, needle hub, lever area, plunger contact, or side window. The chamber is opened and cleaned so the cartridge seats correctly during the next procedure. The lever and plunger movement are checked for smooth operation before the instrument returns to the dental tray. Stainless steel surfaces are wiped and inspected for corrosion, loosened parts, or debris around the mechanism. The Citoject Syringe should be reprocessed only after cartridge and needle removal. Proper care preserves pressure control, cartridge fit, needle alignment, and repeated clinical usability.